java chapter-3 practice set answer

Java chapter-3 practice set question

package com.ritesh;

import java.sql.SQLOutput;
import java.util.Scanner;

public class chapter3 {
    public static void main(String[] args) {

       lowercase();
        underscore();
        template();
       detect();
        escape();

    }
    public  static  void lowercase() //question no 1
    {
        System.out.println("Enter your name in uppercase ");
        Scanner sc=new Scanner(System.in);
        String value=sc.nextLine();
        String out=value.toLowerCase();
        System.out.println(out);

    }

    public  static  void underscore()//question number 2
    {
        System.out.println("Enter your name ");
        Scanner input=new Scanner(System.in);
        String value=input.nextLine();
        String  out1=value.replace(" ","_");
        System.out.println(out1);

    }

    public  static  void template()//question number 3
    {
        System.out.println("Enter your name");
        Scanner sc=new Scanner(System.in);
        String  name=sc.nextLine();
        String output4="Dear<|"+name+"|>,Thanks a lot\"";
        System.out.println(output4);
    }
    public static  void detect()//question number 4
    {
        System.out.println("Enter a string type value");
        Scanner check=new Scanner(System.in);
        String  check33=check.nextLine();
        int find=check33.indexOf(" ");
        int find2=check33.lastIndexOf(" ");
        int output=(find2+1)-find;
        System.out.println(output);


    }
    private  static  void escape()//question number 5
    {
        String name="Dear Harry,\nThis java course is nice\nThanks.";
        System.out.println(name);
    }
}