substring in [yth code example

Example 1: substring java

import java.lang.*;

public class StringDemo {
public static void main(String[] args) {
String str = "This is tutorials point";
String substr = "";

// prints the substring after index 8 till index 17
substr = str.substring(8, 17);
System.out.println("substring = " + substr);

// prints the substring after index 0 till index 8
substr = str.substring(0, 8);
System.out.println("substring = " + substr);
}
}

Example 2: str.substring if 2 letters

public String firstTwo(String str) {
    return str.length() < 2 ? str : str.substring(0, 2);
}