Java - String lastIndexOf() Method

• int lastIndexOf(int ch): Returns the index within this string of the last occurrence of the specified character or -1 if the character does not occur.

• public int lastIndexOf(int ch, int fromIndex): Returns the index of the last occurrence of the character in the character sequence represented by this object that is less than or equal to fromIndex, or -1 if the character does not occur before that point.

• public int lastIndexOf(String str): If the string argument occurs one or more times as a substring within this object, then it returns the index of the first character of the last such substring is returned. If it does not occur as a substring, -1 is returned.

• public int lastIndexOf(String str, int fromIndex): Returns the index within this string of the last occurrence of the specified substring, searching backward starting at the specified index.

int lastIndexOf(int ch)

or

public int lastIndexOf(int ch, int fromIndex)

or

public int lastIndexOf(String str)

or

public int lastIndexOf(String str, int fromIndex)

• ch -- a character.
• fromIndex -- the index to start the search from.
• str -- A string.

import java.io.*;

public class Test {

   public static void main(String args[]) {
      String Str = new String("Welcome to dineshonjava.com");
      String SubStr1 = new String("Dinesh Tutorials" );
      String SubStr2 = new String("Good Tutorials" );

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