GCD of two numbers in java

Java code to to find GCD or Greatest common divisor of two numbers





import java.io.*;




class Test {

public static void main(String[] args) throws IOException {

int n1,n2;

System.out.println("Enter first number:");

BufferedReader br1=new BufferedReader(new InputStreamReader (System.in));

n1=Integer.parseInt(br1.readLine());

System.out.println("Enter