重载方法

public static void main(String[] args) {
    //重载方法
    double max = max(15, 15);
    System.out.println(max);
}
//方法的重载方法名相同传递参数类型不同和返回值不同
public static int max(int num1,int num2){
    if (num1>num2){
        return num1;
    }else if (num1<num2){
        return num2;
    }else {
        System.out.println("num1==num2");
        return 0;
    }
}
public static double max(double num1,double num2){
    if (num1>num2){
        return num1;
    }else if (num1<num2){
        return num2;
    }else {
        System.out.println("num1==num2");
        return 0;
    }
}