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SUNNY574

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参照下面代码，A.getInstance().m1()执行后，控制台输出结果是

2023-07-20 10:28:27 查看(85) 回复(0)

public class  A{
    private static A instance=new A();
    static{
        System.out.println("A类被加载了");
    }
    private A(){
        System.out.println("A()构造方法被调用了");
    }
    public static A getInstance(){
        return instance;
    }
    public void m1(){
        System.out.println("m1()方法被调用了");
    }
}