Java program to implement at least six string method.

Below code is used  to implement string methods in java:

import java.util.Scanner;

public class Stringpp
{
    public static void main(String args[])
    {
        String first=" ",second=" ";
        Scanner s=new Scanner(System.in);
        System.out.println("String operatin");
        System.out.println();
        System.out.println("Enter the first string");
        first=s.nextLine();
        System.out.println("Enter the second string");
        second=s.nextLine();
        System.out.println("The string are :"+first+ " " +second);
        System.out.println("The length of the first string is :"+first.length());
        System.out.println("The concentration of the first and second string is :" +first.concat(" "+second) );
        System.out.println("The character of "+first+"is :"+first.charAt(0));
        System.out.println("The upper case of "+first+"is :"+first.toUpperCase());
        System.out.println("The substring of the "+first+"starting from index 3 and ending at 6 is : "+first.substring(3,7));
        System.out.println("Replacing 'a' with 'o' in "+first.replace('a','o'));
    }
}

Thank You.