Copyright © tutorialspoint.com

Java - String indexOf() Method

previous next


Description:

This method has following different variants:

Syntax:

Here is the syntax of this method:

public int indexOf(int ch )

or

public int indexOf(int ch, int fromIndex)

or

int indexOf(String str)

or

int indexOf(String str, int fromIndex)

Parameters:

Here is the detail of parameters:

Return Value :

Example:

import java.io.*;

public class Test{
   public static void main(String args[]){
      String Str = new String("Welcome to Tutorialspoint.com");
      String SubStr1 = new String("Tutorials" );
      String SubStr2 = new String("Sutorials" );

      System.out.print("Found Index :" );
      System.out.println(Str.indexOf( 'o' ));
      System.out.print("Found Index :" );
      System.out.println(Str.indexOf( 'o', 5 ));
      System.out.print("Found Index :" );
      System.out.println( Str.indexOf( SubStr1 ));
      System.out.print("Found Index :" );
      System.out.println( Str.indexOf( SubStr1, 15 ));
      System.out.print("Found Index :" );
      System.out.println(Str.indexOf( SubStr2 ));
   }
}

This produces following result:

Found Index :4
Found Index :9
Found Index :11
Found Index :-1
Found Index :-1

previous next

Copyright © tutorialspoint.com