Java String indexOf() Example

String class indexOf method example

String class indexOf method example:- This example demonstrates the working of indexOf method. this method returns the index location of character specified.

Syntax:-indexOf('h')

Here is the code:-

/**
* @(#) IndexOfString.java
* IndexOfString class demonstrates the working of indexOf() method of String class of lang package
* @version 15-May-2008
* @author Rose India Team
*/


public class IndexOfString {
public static void main(String args[]){

  // Method here returns index location or number position of the specified character.         
  String str = "hare krishna hare krishna krishna krishna hare hare";
  int prabhu = str.indexOf('h'), heram;

  System.out.println("Index of 'h' in String 'str' is: " + prabhu);  
  System.out.println("Index of 'k' in String 'str' is: " + str.indexOf("k"));
    
  //For a word or sequence of charaters, method returns the index location of letter with which the word starts.
  System.out.println("Index of 'krishna' in String 'str' is: " + str.indexOf("krishna"));
  
}
}

Output of the program:-
Index of 'h' in String 'str' is: 0
Index of 'k' in String 'str' is: 5
Index of 'krishna' in String 'str' is: 5