How to read and print an integer value in Java?

Consider the program:

import java.util.*; 
 
class j3
{	
	public static void main(String args[]) 
	{ 
		int a; 

		//declare object of Scanner Class
		Scanner buf=new Scanner(System.in); 
		
		System.out.print("Enter value of a :"); 
		/*nextInt() method of Scanner class*/
		a=buf.nextInt(); 
		
		System.out.println("Value of a:" +a); 
	} 
}

Output

Enter value of a :120 
Value of a:120