» » Java example program to print message without using System.out.println()

Is it possible to print message without using system.out.println?


  • Yes its possible to print message without using System.out.println("");

  1. System.out.write("www.instanceofjava.com \n".getBytes());
  2.  System.out.format("%s", "www.instanceofjava.com \n")
  3.  PrintStream myout =  new PrintStream(new FileOutputStream(FileDescriptor.out));
       myout.print("www.instanceofjava.com \n");
  4. System.err.print("This is custom error message");
  5. System.console().writer().println("Hai");

print without system.out.println()



1.System.out.write(Byte [] arg0);

  • System.out.write(Byte [] arg0) method The java.io.FilterOutputStream.write(byte[] b) method writes b.length bytes to this output stream.

  1. package com.instanceofjava;
  2.  
  3. public class PrintMessage {

  4. public static void main(String[] args) throws IOException{
  5.  
  6.        System.out.write("Hello World".getBytes());
  7. }
  8. }

Output:

  1. Hello World

2. PrintStream  java.io.PrintStream.format(String arg0, Object... arg1)

  • System.out.format("format",Object obj) by using this method we can format the text and print

  1. package com.instanceofjava;
  2.  
  3. public class PrintMessage {

  4. public static void main(String[] args){
  5.  
  6.         System.out.format("%s", "James");
  7. }
  8.  
  9. }

Output:

  1. James

3. FileDescriptor:

  • Create PrintStream object by passing FileOutputStream(FileDescriptor.out) object as an argument to the constructor
  1. package com.instanceofjava;
  2.  
  3. public class PrintMessage {

  4. public static void main(String[] args){
  5.  
  6.        PrintStream myout =  new PrintStream(new FileOutputStream(FileDescriptor.out));
              myout.print("i love Java");
  7. }
  8. }

Output:

  1. i love java


4. System.err.print(""):

  • We can use System.err.print("") method to print the message actually its used to print error message
  1. package com.instanceofjava;
  2.  
  3. public static void main(String[] args){
  4.  
  5.        System.err.print("This is custom error message");
  6. }
  7. }

Output:

  1. This is custom error message


5.System.console().writer().println("");

  • System.console() returns null if your application is not run in a terminal System.console() provides methods for reading password without echoing characters

  1. package com.instanceofjava;
  2.  
  3. public static void main(String[] args){
  4.  
  5.        System.err.print("This is custom error message");
  6. }
  7. }

Output:

  1. This is custom error messageException in thread "main" java.lang.NullPointerException
        at PrintMessage.main(PrintMessage.java:24)

Instance Of Java

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