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Java basics

lastIndexOf()


nt 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.

Syntax:
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)


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 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 ));
   }
}


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