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public 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)

public class Test {
    public static void main(String args[]) {
        String Str = new String("tutorialpro.org:www.tutorialpro.org");
        String SubStr1 = new String("tutorialpro");
        String SubStr2 = new String("com");

        System.out.print("Find the last occurrence of character o: ");
        System.out.println(Str.lastIndexOf('o'));
        System.out.print("Find the last occurrence of character o starting from index 14: ");
        System.out.println(Str.lastIndexOf('o', 14));
        System.out.print("Find the last occurrence of substring SubStr1: ");
        System.out.println(Str.lastIndexOf(SubStr1));
        System.out.print("Find the last occurrence of substring SubStr1 starting from index 15: ");
        System.out.println(Str.lastIndexOf(SubStr1, 15));
        System.out.print("Find the last occurrence of substring SubStr2: ");
        System.out.println(Str.lastIndexOf(SubStr2));
    }
}

Find the last occurrence of character o: 17
Find the last occurrence of character o starting from index 14: 13
Find the last occurrence of substring SubStr1: 9
Find the last occurrence of substring SubStr1 starting from index 15: 9
Find the last occurrence of substring SubStr2: 16