Java Strings

gistfile1.java

package com.diycomputerscience;

/**
 * This example explains Java Strings and a few commonly used methods
 * in the {@link String}  class
 *
 */
public class JavaStrings { 

	public static void main(String[] args) {
		String s1 = "prog:Java:Hello";
		String s2 = new String(" World");
		
		System.out.println(s1.substring(0,4));
		
		if(s1.contains(":")) {
			System.out.println("The string contains a ':' character");
		}
		
		if(s1.indexOf(':') != -1) {
			System.out.println("The string contains a ':' character");
		}
		
		//Print the substring till the first occurrence of ":"
		System.out.println(s1.substring(0,s1.indexOf(':')));
		
		//Simple concatenation using the + operator
		System.out.println(s1 + s2);
		
		String tokens[] = s1.split(":");
		System.out.println("Printing all the tokens in String '" + s1 + "'");
		for(int i=0; i<tokens.length; i++) {
			System.out.println(tokens[i]);
		}		
	}
}