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Le Java pour la boucle est utilisé pour parcourir une partie du programme plusieurs fois. Si le nombre d'itérations est fixé , il est recommandé d'utiliser la boucle for.

Il existe trois types de boucles for en Java.

• Boucle for simple
• Pour chaque ou Boucle for améliorée
• Étiqueté pour la boucle

Java Simple pour la boucle

Une simple boucle for est la même que C / C++ . Nous pouvons initialiser le variable , vérifiez la condition et la valeur d'incrémentation/décrémentation. Il se compose de quatre parties :

Initialisation: C'est la condition initiale qui est exécutée une fois au démarrage de la boucle. Ici, nous pouvons initialiser la variable, ou nous pouvons utiliser une variable déjà initialisée. C'est une condition facultative.Condition: C'est la deuxième condition qui est exécutée à chaque fois pour tester l'état de la boucle. Il continue l'exécution jusqu'à ce que la condition soit fausse. Il doit renvoyer une valeur booléenne vraie ou fausse. C'est une condition facultative.Incrémenter/Décrémenter: Il incrémente ou décrémente la valeur de la variable. C'est une condition facultative.Déclaration: L'instruction de la boucle est exécutée à chaque fois jusqu'à ce que la deuxième condition soit fausse.

Syntaxe:

 for(initialization; condition; increment/decrement){ //statement or code to be executed } 

Organigramme :

Exemple:

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ForExample.java

 //Java Program to demonstrate the example of for loop //which prints table of 1 public class ForExample { public static void main(String[] args) { //Code of Java for loop for(int i=1;i<=10;i++){ system.out.println(i); } < pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 1 2 3 4 5 6 7 8 9 10 </pre> <h2>Java Nested for Loop</h2> <p>If we have a for loop inside the another loop, it is known as nested for loop. The inner loop executes completely whenever outer loop executes.</p> <p> <strong>Example:</strong> </p> <p> <strong>NestedForExample.java</strong> </p> <pre> public class NestedForExample { public static void main(String[] args) { //loop of i for(int i=1;i<=3;i++){ loop of j for(int system.out.println(i+' '+j); } end i < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 2 2 2 3 3 1 3 2 3 3 </pre> <p> <strong>Pyramid Example 1:</strong> </p> <p> <strong>PyramidExample.java</strong> </p> <pre> public class PyramidExample { public static void main(String[] args) { for(int i=1;i<=5;i++){ for(int j="1;j&lt;=i;j++){" system.out.print('* '); } system.out.println(); new line < pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * </pre> <p> <strong>Pyramid Example 2:</strong> </p> <p> <strong>PyramidExample2.java</strong> </p> <pre> public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print(&apos;* &apos;); } System.out.println();//new line } } } </pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * * * * * * * </pre> <h2>Java for-each Loop</h2> <p>The for-each loop is used to traverse array or collection in Java. It is easier to use than simple for loop because we don&apos;t need to increment value and use subscript notation.</p> <p>It works on the basis of elements and not the index. It returns element one by one in the defined variable.</p> <p> <strong>Syntax:</strong> </p> <pre> for(data_type variable : array_name){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForEachExample.java</strong> </p> <pre> //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 12 23 44 56 78 </pre> <h2>Java Labeled For Loop</h2> <p>We can have a name of each Java for loop. To do so, we use label before the for loop. It is useful while using the nested for loop as we can break/continue specific for loop.</p> <h4>Note: The break and continue keywords breaks or continues the innermost for loop respectively.</h4> <p> <strong>Syntax:</strong> </p> <pre> labelname: for(initialization; condition; increment/decrement){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>LabeledForExample.java</strong> </p> <pre> //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+' '+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+' '+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){></pre></=5;i++){></pre></=3;i++){></pre></=10;i++){>

Java imbriqué pour la boucle

Si nous avons une boucle for à l’intérieur d’une autre boucle, on parle de boucle for imbriquée. La boucle interne s'exécute complètement à chaque fois que la boucle externe s'exécute.

Exemple:

NestedForExample.java

 public class NestedForExample { public static void main(String[] args) { //loop of i for(int i=1;i<=3;i++){ loop of j for(int system.out.println(i+\' \'+j); } end i < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 2 2 2 3 3 1 3 2 3 3 </pre> <p> <strong>Pyramid Example 1:</strong> </p> <p> <strong>PyramidExample.java</strong> </p> <pre> public class PyramidExample { public static void main(String[] args) { for(int i=1;i<=5;i++){ for(int j="1;j&lt;=i;j++){" system.out.print(\'* \'); } system.out.println(); new line < pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * </pre> <p> <strong>Pyramid Example 2:</strong> </p> <p> <strong>PyramidExample2.java</strong> </p> <pre> public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print(&apos;* &apos;); } System.out.println();//new line } } } </pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * * * * * * * </pre> <h2>Java for-each Loop</h2> <p>The for-each loop is used to traverse array or collection in Java. It is easier to use than simple for loop because we don&apos;t need to increment value and use subscript notation.</p> <p>It works on the basis of elements and not the index. It returns element one by one in the defined variable.</p> <p> <strong>Syntax:</strong> </p> <pre> for(data_type variable : array_name){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForEachExample.java</strong> </p> <pre> //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 12 23 44 56 78 </pre> <h2>Java Labeled For Loop</h2> <p>We can have a name of each Java for loop. To do so, we use label before the for loop. It is useful while using the nested for loop as we can break/continue specific for loop.</p> <h4>Note: The break and continue keywords breaks or continues the innermost for loop respectively.</h4> <p> <strong>Syntax:</strong> </p> <pre> labelname: for(initialization; condition; increment/decrement){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>LabeledForExample.java</strong> </p> <pre> //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){></pre></=5;i++){></pre></=3;i++){>

Exemple de pyramide 1 :

PyramidExample.java

 public class PyramidExample { public static void main(String[] args) { for(int i=1;i<=5;i++){ for(int j="1;j&lt;=i;j++){" system.out.print(\'* \'); } system.out.println(); new line < pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * </pre> <p> <strong>Pyramid Example 2:</strong> </p> <p> <strong>PyramidExample2.java</strong> </p> <pre> public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print(&apos;* &apos;); } System.out.println();//new line } } } </pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * * * * * * * </pre> <h2>Java for-each Loop</h2> <p>The for-each loop is used to traverse array or collection in Java. It is easier to use than simple for loop because we don&apos;t need to increment value and use subscript notation.</p> <p>It works on the basis of elements and not the index. It returns element one by one in the defined variable.</p> <p> <strong>Syntax:</strong> </p> <pre> for(data_type variable : array_name){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForEachExample.java</strong> </p> <pre> //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 12 23 44 56 78 </pre> <h2>Java Labeled For Loop</h2> <p>We can have a name of each Java for loop. To do so, we use label before the for loop. It is useful while using the nested for loop as we can break/continue specific for loop.</p> <h4>Note: The break and continue keywords breaks or continues the innermost for loop respectively.</h4> <p> <strong>Syntax:</strong> </p> <pre> labelname: for(initialization; condition; increment/decrement){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>LabeledForExample.java</strong> </p> <pre> //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){></pre></=5;i++){>

Exemple de pyramide 2 :

PyramidExample2.java

 public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print('* '); } System.out.println();//new line } } } 

Sortir:

 * * * * * * * * * * * * * * * * * * * * * 

Boucle Java pour chaque

La boucle for-each est utilisée pour parcourir un tableau ou une collection en Java. Il est plus facile à utiliser qu'une simple boucle for car nous n'avons pas besoin d'incrémenter la valeur et d'utiliser la notation en indice.

Il fonctionne sur la base d'éléments et non d'index. Il renvoie les éléments un par un dans la variable définie.

Syntaxe:

 for(data_type variable : array_name){ //code to be executed } 

Exemple:

ForEachExample.java

fichiers Linux

 //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } 

Sortir:

 12 23 44 56 78 

Java étiqueté pour la boucle

Nous pouvons avoir un nom pour chaque boucle Java. Pour ce faire, nous utilisons label avant la boucle for. C'est utile lors de l'utilisation de la boucle for imbriquée car nous pouvons interrompre/continuer une boucle for spécifique.

Remarque : Les mots-clés break et continue interrompent ou continuent respectivement la boucle for la plus interne.

Syntaxe:

 labelname: for(initialization; condition; increment/decrement){ //code to be executed } 

Exemple:

ÉtiquetéForExample.java

 //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){>

Si tu utilises casser bb; , cela brisera uniquement la boucle interne, ce qui est le comportement par défaut de toute boucle.

ÉtiquetéForExample2.java

 public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){>

Java Infinitif pour la boucle

Si vous utilisez deux points-virgules ;; dans la boucle for, ce sera une boucle for infinitive.

Syntaxe:

 for(;;){ //code to be executed } 

Exemple:

ForExample.java

 //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println('infinitive loop'); } } } 

Sortir:

 infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c 

Maintenant, vous devez appuyer sur ctrl+c pour quitter le programme.

Java pour Loop vs while Loop vs do-while Loop