java 练习 计算对角线长度

/**
 * Created by xabcd on 2019/2/16.
 */
public class java_mathsqrt
{
    public static void main(String args[]) {
        double num= show_num( 22, 19);
    System.out.println(num);}
        public static double show_num(int a,int b){
    return Math.sqrt(a*a+b*b);
}



    }