How to use substring 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: substring

const str = 'Mozilla';

console.log(str.substring(1, 3));
// expected output: "oz"

console.log(str.substring(2));
// expected output: "zilla"

Example 3: how to do substring java

class Main {
  public static void main (String[] args) {
    
    String str = "Hello World!";
    
    String firstWord = str.substring(0, 5);
    //two parameters are start and end index: (inclusive, non-inclusive)
    
    String secondWord = str.substring(6, 11);
    
    //firstWord has string "Hello"
    //secondWord has string "World"
  }
}

Example 4: 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 5: str.substring if 2 letters

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