CLASSE JAVA.IO.PRINTSTREAM EN JAVA

Classe Java.io.Printstream en Java | Ensemble 1

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marque Linux

PrintStream printf(Locale l String format Object... args) : Une méthode pratique pour écrire une chaîne formatée dans ce flux de sortie à l’aide de la chaîne de format et des arguments spécifiés.

    Syntax :   public PrintStream printf(Locale l  
 String format  
 Object... args)  
    Parameters:     
l - The locale to apply during formatting. If l is null then no localization is applied.  
format - A format string as described in Format string syntax  
args - Arguments referenced by the format specifiers in the format string.  
    Returns:     
This output stream  
    Throws:     
IllegalFormatException   
NullPointerException

Java

//Java program to demonstrate printf method import java.io.*; import java.util.Locale; class PrintStreamDemo  {  public static void main(String[] args)   {  String s = 'for';    // create printstream object  PrintStream printStream = new PrintStream(System.out);    // illustrating printf(Locale l String format Object... args) method  printStream.printf(Locale.US 'Geeks%sGeeks' s);  } }

    Output:     
GeeksforGeeks

PrintStream printf(String format Object... args) : Une méthode pratique pour écrire une chaîne formatée dans ce flux de sortie à l’aide de la chaîne de format et des arguments spécifiés.

    Syntax :   public PrintStream printf(String format  
 Object... args)  
    Parameters:     
format - A format string as described in Format string syntax  
args - Arguments referenced by the format specifiers in the format string.  
    Returns:     
This output stream  
    Throws:     
IllegalFormatException   
NullPointerException

Java

//Java program to demonstrate printf(String format Object... args) method import java.io.*; public class PrintStreamDemo  {  public static void main(String[] args)  {  String s = 'for';    // create printstream object  PrintStream obj= new PrintStream(System.out);    // illustrating printf(String format Object... args) method  obj.printf('Geeks%sGeeks' s);  } }

    Output:     
GeeksforGeeks

void println() : Termine la ligne actuelle en écrivant la chaîne de séparation de ligne.

    Syntax :   public void println()

Java

//Java program to demonstrate println() methods import java.io.PrintStream; class PrintStreamDemo {  public static void main(String[] args)  {  PrintStream obj = new PrintStream(System.out);    //illustrating println();  obj.println('GeeksforGeeks');  } }

    Output:     
GeeksforGeeks

void println (booléen x): Imprime un booléen puis termine la ligne.

    Syntax :   public void println(boolean x)

Java

//Java program to demonstrate println(boolean) method import java.io.*; class PrintStreamDemo  {  public static void main(String[] args)   {  // create printstream object  PrintStream obj = new PrintStream(System.out);  //illustrating println(boolean) method  obj.println(true);  // flush the stream  obj.flush();  } }

    Output:     
true

void println(char x): Imprime un caractère puis termine la ligne.

    Syntax :   public void println(char x)

Java

//Java program to demonstrate println(char x) method import java.io.*; public class PrintStreamDemo  {  public static void main(String[] args)   {  char c = 'g';    // create printstream object  PrintStream obj = new PrintStream(System.out);    // illustrating println(char x)  obj.println(c);    // flush the stream  obj.flush();    } }

    Output:     
g

void println(char[]x): Imprime un tableau de caractères, puis termine la ligne.

    Syntax :   public void println(char[] x)

Java

//Java program to demonstrate println(char[] x) method import java.io.*; public class PrintStreamDemo  {  public static void main(String[] args)   {  char[] c = {'G' 'E' 'E''K'};    // create printstream object  PrintStream obj = new PrintStream(System.out);    // illustrating println(char[] x)  obj.println(c);    // flush the stream  obj.flush();  } }

    Output:     
GEEK

void println(double x): Imprime un double puis termine la ligne.

    Syntax :   public void println(double x)

Java

//Java program to demonstrate println(double x) method import java.io.*; public class PrintStreamDemo {  public static void main(String[] args)   {  double c = 5.42762;    // create printstream object  PrintStream obj = new PrintStream(System.out);    // illustrating println(double x)  obj.println(c);    // flush the stream  obj.flush();  } }

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5.42762

void println (float x): Imprime un float, puis termine la ligne.

    Syntax :   public void println(float x)

Java

//Java program to demonstrate println(float x) method import java.io.*; public class PrintStreamDemo {  public static void main(String[] args)   {  float c = 5.168502f;    // create printstream object  PrintStream obj = new PrintStream(System.out);    // illustrating println(float x)  obj.println(c);    // flush the stream  obj.flush();  } }

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5.168502f

void println (int x): Imprime un entier, puis termine la ligne.

    Syntax :   public void println(boolean x)

Java

//Java program to demonstrate println(int x) method import java.io.*; public class PrintStreamDemo {  public static void main(String[] args)  {    int c = 5;    // create printstream object  PrintStream obj = new PrintStream(System.out);    // illustrating println(int x)  obj.println(c);    // flush the stream  obj.flush();  } }

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void println (long x): Imprime un long puis termine la ligne.

    Syntax :   public void println(long x)

Java

//Java program to demonstrate println(long x) method import java.io.*; public class PrintStreamDemo  {  public static void main(String[] args)  {  long c = 123456789l;  try   {  // create printstream object  PrintStream obj= new PrintStream(System.out);    // illustrating println(long x)  obj.println(c);    // flush the stream  obj.flush();  }  catch (Exception ex)  {  ex.printStackTrace();  }  } }

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123456789

void println(Objet x) : Imprime un objet, puis termine la ligne.

    Syntax :   public void println(Object x)

Java

//Java program to demonstrate println(Object x) method import java.io.*; public class PrintStreamDemo  {    public static void main(String[] args)   {  // create printstream object  PrintStream obj = new PrintStream(System.out);    //illustrating println(Object X)  obj.println(obj);    // flush the stream  obj.flush();  } }

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java.io.PrintStream@15db9742

void println(Chaîne x) : Imprime une chaîne, puis termine la ligne.

    Syntax :   public void println(boolean x)

Java

import java.io.*; //Java program to demonstrate println(String x) method public class PrintStreamDemo  {  public static void main(String[] args)   {  String c = 'GeeksforGeeks';    // create printstream object  PrintStream ps = new PrintStream(System.out);    // illustrating println(String x)  ps.println(c);    // flush the stream  ps.flush();  } }

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GeeksforGeeks

protected void setError() : Définit l'état d'erreur du flux sur true.

    Syntax :   public void println(String x)

Java

//Java program to demonstrate setError() method import java.io.*; public class PrintStreamDemo extends PrintStream  {  public PrintStreamDemo(OutputStream out)   {  super(out);  }  public static void main(String[] args)   {  byte c[] = {65 66 67 68 69 70 71};    // create printstream object  PrintStreamDemo obj = new PrintStreamDemo(System.out);    // illustrating write() method  obj.write(c 1 3);    // flush the stream  obj.flush();    //illustrating setError() method   obj.setError();  } }

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BCD

void write(byte[] buf int off int len) : Écrit len octets du tableau d'octets spécifié en commençant au décalage dans ce flux.

    Syntax :   public void write(byte[] buf  
 int off  
 int len)  
    Overrides:     
write in class FilterOutputStream  
    Parameters:     
buf - A byte array  
off - Offset from which to start taking bytes  
len - Number of bytes to write

Java

//Java program to demonstrate write(int b) method import java.io.*; public class PrintStreamDemo  {  public static void main(String[] args)   {  byte c = 65;    // create printstream object  PrintStream obj = new PrintStream(System.out);    //illustrating write(int b)  obj.write(c);    // flush the stream  obj.flush();    } }

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BCD

void write(int b) : Écrit l'octet spécifié dans ce flux.

    Syntax :   public void write(int b)  
Overrides:  
write in class FilterOutputStream  
Parameters:  
b - The byte to be written

Java

//Java program to demonstrate write(int b) method import java.io.*; public class PrintStreamDemo  {  public static void main(String[] args)   {  byte c = 65;    // create printstream object  PrintStream obj = new PrintStream(System.out);    //illustrating write(int b)  obj.write(c);    // flush the stream  obj.flush();    } }

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Classe Java.io.Printstream en Java | Ensemble 2