请问这个程序哪里有问题

public class Demo {

public static void main(String args[]) {

    Base b = new Base();

    b.Base(100, 200);

    System.out.println(b.Base());

}

}

default class Base {

private int x = 10;

private int y = 20;

Base (int x, int y) {

    this.x = x;

    this.y = y;

}

int Base() {

    return x + y;

}

}

class Base {
    private int x = 10;
    private int y = 20;
    
    public Base(int x, int y) {
        this.x = x;
        this.y = y;
    }
    int base() {
        return x + y;
    }
}

class Demo {
    public static void main(String[] args) {
        Base b = new Base(100, 200);
        System.out.println(b.base());
    }
}

参考GPT和自己的思路：

这段程序存在问题。在第5行，试图调用Base类的构造函数，但是它不应该像方法一样被调用，而应该使用new关键字来实例化对象。正确的代码应该是：

Base b = new Base(100, 200);