Java.io.Printstream Class in Java | Set 2

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 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 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 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 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 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 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 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 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 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 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 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)

import java.io.*; 

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 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 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 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:

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Java