substring(5 1) code example

Example 1: how to substring in java

class scratch{
    public static void main(String[] args) {
        String hey = "Hello World";
        System.out.println( hey.substring(0, 5) );
        // prints Hello;
    }
}

Example 2: str.substring if 2 letters

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