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();
    in.close();
    System.out.println(S.substring(start,end));
}

}

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();
    String str = S.substring(start,end);
    System.out.println(str);
}

}

Java logic for substring

  Scanner in = new Scanner(System.in);
        String S = in.next();
        int start = in.nextInt();
        int end = in.nextInt();
        String str = S.substring(start,end);
        System.out.println(str);

Try to do it using steam and lambda expression. its interesting

It’s a great beginner-friendly problem to build confidence with string manipulation! CBTF Turbo 247 Login Registration