Java 基础&继承示例

C1,C2,C3,;C2继承C1，C3继承C2,各自在构造函数都有输出

package test1_3.test1;

public class C1 {
    public C1() {
        System.out.println("C1");
    }
}

package test1_3.test1;

public class C2 extends C1{
    public C2() {
        System.out.println("C2");
    }
}

package test1_3.test1;

public class C3 extends C2{
    public C3() {
        System.out.println("C3");
    }
}

package test1_3.test1;

public class Run {
    public static void main(String[] args) {
        C3 c3 = new C3();
    }
}