Java.io.Printstream Class in Java | Set 2

Last Updated : 01 May, 2024

Java.io.Printstream Class in Java | Set 1

More Methods:

PrintStream printf(Locale l, String format, Object… args) : A convenience method to write a formatted string to this output stream using the specified format string and arguments.

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) : A convenience method to write a formatted string to this output stream using the specified format string and arguments.

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(): Terminates the current line by writing the line separator string.

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(boolean x): Prints a boolean and then terminate the line.

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): Prints a character and then terminate the line.

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): Prints an array of characters and then terminate the line.

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): Prints a double and then terminate the line.

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();     } }

Output:

5.42762

void println(float x): Prints a float and then terminate the line.

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();     } }

Output:

5.168502f

void println(int x): Prints an integer and then terminate the line.

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();     } }

Output:

void println(long x): Prints a long and then terminate the line.

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();         }     } }

Output:

123456789

void println(Object x) :Prints an Object and then terminate the line.

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();     } }

Output:

java.io.PrintStream@15db9742

void println(String x) :Prints a String and then terminate the line.

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();     } }

Output:

GeeksforGeeks

protected void setError() :Sets the error state of the stream to 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();     } }

Output:

BCD

void write(byte[] buf, int off, int len) :Writes len bytes from the specified byte array starting at offset off to this stream.

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();          } }

Output:

BCD

void write(int b) :Writes the specified byte to this stream.

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();          } }

Output:

Java.io.PrintWriter class in Java | Set 2

Nishant Sharma

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Practice Tags :

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Java.io.Printstream Class in Java | Set 2

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