What will the following code output:

String s = "malayalam";
System.out.println(s.indexOf('m'));
System.out.println(s.lastIndexOf('m'));

0
8

Working

indexOf() returns the index of the first occurrence of the specified character within the current String object. The first occurrence of 'm' is at index 0, thus 0 is printed first.

lastIndexOf() returns the index of the last occurrence of the specified character within the String object. The last occurrence of 'm' is at index 8, thus 8 is printed next.