Java substring

Given a string, , and two indices,  and , print a substring consisting of all characters in the inclusive range from  to . You'll find the String class' substring method helpful in completing this challenge.
Input Format
The first line contains a single string denoting .
The second line contains two space-separated integers denoting the respective values of  and end

Constraints
  • String  consists of English alphabetic letters (i.e., ) only.
Output Format
Print the substring in the inclusive range from  to .
Sample Input
Helloworld
3 7
Sample Output
lowo
Explanation
In the diagram below, the substring is highlighted in green:
substring.png
Program:

import java.io.*;
import java.util.*;
public class Solution {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String S = in.next();
        int start = in.nextInt();
        int end = in.nextInt();
        char arr[]=S.toCharArray();
        for(int i=start;start<end;start++)
            System.out.print(arr[start]);
    }
}


Program 2:
import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;
public class Solution {
 public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String S = in.next();
        int start = in.nextInt();
        int end = in.nextInt();
        System.out.println(S.substring(start,end));
    }
}


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