Write java code to obtain absolute value of given number using "ternary(?)" operator

import java.io.*;

class Ternary
{
public static void main(String args[]) throws IOException
{
int num,k;
System.out.println("Enter a number");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
num=Integer.parseInt(br.readLine());
k = num < 0 ? -num : num;   //get absolute value of num
System.out.println("Absolute value of "+num+" is "+k);
}

}