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Reading user input in java

Posted by Author on Jan 29, 2009 | Leave a Comment

Sometimes in our stand alone java program we need to read user input data. Below code snippet will show you how to read user input in a Java application.

  1. package com.tctalk.myapp.java.src;
  2.  
  3. import java.io.BufferedReader;
  4. import java.io.IOException;
  5. import java.io.InputStreamReader;
  6.  
  7. /**
  8. * ReaduserInput.java – [This code reads the user input data from command prompt]
  9. *
  10. * @author TechCuBeTalk.com
  11. * @version 1.0
  12. */
  13. public class ReaduserInput {
  14.  
  15.     public static void main(String[] args) {
  16.  
  17.         //  Ask the user to enter their name
  18.         System.out.print(“Please enter your name: “);
  19.  
  20.         //  To read user input create a reader object
  21.         BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  22.  
  23.         String userName = null;
  24.  
  25.         //  read the user input from command prompt by readLine() method
  26.         try {
  27.             userName = br.readLine();
  28.         } catch (IOException ioExcption) {
  29.             System.out.println(“IO exception occurred!”);
  30.             System.exit(1);
  31.         }
  32.  
  33.         System.out.println(“Welcome “ + userName + “!! Have a Good day!!”);
  34.  
  35.     }
  36.  
  37. }
  38.  
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