How to get first two characters of a string in java

• We can get first  two character of a string in java by using subString() method in java
• To get first N numbers of a string s.substring(0,n);
• Lets see an example java program on how to get first two characters or first N characters.

In Java, you can use the charAt() method to get the first character of a string. The charAt() method takes an index as a parameter and returns the character at that index. 

To get the first character of a string, you can pass in the index 0 to the charAt() method.

Here's an example:

String str = "Hello, World!";

char firstChar = str.charAt(0);

System.out.println("First character: " + firstChar);

This will output:

First character: H

Program #1: Java Program to get first two characters of a String.

1.  package StringInterviewprograms;
2.  
3. public class GetFirstTwoCharacters {
4.  
5. /**
6. * How to get First N characters in java 
7. * @author www.instanceofjava.com
8. */
9.  
10. public static void main(String[] args) {
11.         
12.         String str="Get first two characters of a String";
13.         
14.         System.out.println(str.substring(0,2));
15. }
16.     
17.     
18. }
     

Output:

1.  Ge
   

  Program #2:

1. package StringInterviewprograms;
2. import java.util.Scanner;
3.  
4. public class GetFirstTwoCharacters {
5. /**
6. * How to get First N characters in java 
7. * @author www.instanceofjava.com
8. */
9. public static void main(String[] args) {
10.         
11.          Scanner sc= new Scanner(System.in);
12.          
13.          System.out.println("Please Enter a String");
14.          
15.          String str=sc.next();         
16.         if(str.length()>=2){
17.  
18.             System.out.println(str.substring(0,2));
19.         }else{
20.             System.out.println("please enter a string with minimum length of 2.");
21.         }
22.         }
23.  
24.   }

 Output:

1. Please Enter a String
2. miss you
3. mi