Command Line Input in Java



So far we have been using only the Command Line Ouput System.out.println to display and message on console. Java also has a method for console input. We will now show how to get Console Input. 

  1.      /*
  2.       ReferenceDesigner.com Java Tutorial
  3.       Understanding Console Input InputStreamReader 
  4.       */
  5.  
  6. import java.io.BufferedReader;
  7. import java.io.IOException;
  8. import java.io.InputStreamReader;
  9.  
  10. class readname {
  11.   public static void main(String[] args) {
  12.  
  13. 	System.out.print("What is your name : ");
  14.  
  15. 	try{
  16. 	    BufferedReader bufferRead = new BufferedReader(new InputStreamReader(System.in));
  17. 	    String name = bufferRead.readLine();
  18. 		System.out.println();
  19. 	    System.out.println("Hello "+name);
  20. 	}
  21. 	catch(IOException e)
  22. 	{
  23. 		e.printStackTrace();
  24. 	}
  25.  
  26.   }
  27. }


If you compile and run, it prompts you and awaits for your response. Once you enter a complete line It responds back with hi yourname 


 What is your name : Michael

Hello Michael