//import java.lang.*; public class TPC34 { public static void main(String[] args) { // String 012345.... index String str=new String("APPLE"); String v=str.toLowerCase(); System.out.println(v); // apple System.out.println(str.charAt(3)); System.out.println(str.length()); System.out.println(str.indexOf("PL")); System.out.println(str.indexOf("PX")); // -1 System.out.println(str.replaceAll("P", "X")); // AXXLE } }