Java String lastIndexOf() method

Java String lastIndexOf() method returns last index of character or substring in a String.

Syntax:

Method Description

int lastIndexOf(int ch)	It returns last index position for the given char value
int lastIndexOf(int ch, int fromIndex)	It returns last index position for the given char value and from index
int lastIndexOf(String substring)	It returns last index position for the given substring
int lastIndexOf(String substring, int fromIndex)	It returns last index position for the given substring and from index

Parameter

ch : a single character

fromIndex : index position from where index of the char value or substring is returned

substring : substring to be searched in current String

Returns

It returns last index of the given String

Java String lastIndexOf() method example

          public class JavaStringLastIndexOfEx1
{ 
                  public static void main(String args[])
                { 
    String s1="Java String Last IndexOf method Examples";//there are 2 's' characters in this sentence 
    int index1=s1.lastIndexOf('s');//returns last index of 's' char value 
    int index2=s1.indexOf('s');
    System.out.println("Last index  : "+index1);//39
    System.out.println("Index :"+index2);//14
      }      
    }

Output:

Last index  : 39
Index :14

Java String lastIndexOf(int ch, int fromIndex) method example

    public class JavaStringLastIndexOfEx2 { 
        public static void main(String[] args) { 
            String s1="Java String Last IndexOf method Examples";
            int index = s1.lastIndexOf('a',7); 
            System.out.println(index);       
        } 
    }

Output:

3

Java String lastIndexOf(String substring) method example

public class JavaStringLastIndexOfEx3
 { 
        public static void main(String[] args)
        {          
            String str = "Java String Last IndexOf method Examples"; 
            int index = str.lastIndexOf("method"); 
            System.out.println(index);       
        } 
    }

Output:

25

Java String lastIndexOf(String substring, int fromIndex) method example

    public class JavaStringLastIndexOfEx4
    { 
        public static void main(String[] args)
        {          
            String str = "Java String Last IndexOf method Examples"; 
            int index = str.lastIndexOf("Of", 25); 
            System.out.println(index); 
            index = str.lastIndexOf("Of", 10); 
            System.out.println(index); // -1, if not found       
        } 
    }

Output:

22
-1