instanceof 判断一个对象是否属于某个类的示例

instanceof 判断一个对象是否属于某个类的示例

public class Test_instanceof {

    public static void main(String[] args) {
        String s = "Hello";
        int[] a = {1,2};
        if(s instanceof String)
            System.out.println("true");
        if(s instanceof Object)
            System.out.println("true");
        if(a instanceof int[])
            System.out.println("true");
    }
}