Java - Write code to Convert space characters by underscore characters.

  1. HOME
  2. Java
  3. String
  4. String Replacing

Requirements

Write code to Convert space characters by underscore characters.

test test becomes test_test

Hint

use String.replace() method

Demo

//package com.book2s;

public class Main {
    public static void main(String[] argv) {
        String content = "book2s.com";
        System.out.println(replaceSpaceUnderscoreChar(content));
    }/*from w  ww .ja v  a2 s .  com*/

    protected final static char UNDERSCORE_CHAR = '_';

    /**
     * <p>Convert space characters by underscore characters. This method is used in 
     * creating id or handle name from common expression.</p>
     * @param content original content with space characters
     * @return string or identifiers with underscore characters
     */
    public static String replaceSpaceUnderscoreChar(String content) {
        return content.replace(' ', UNDERSCORE_CHAR);
    }
}

Related Exercise