设计模式之装饰着模式

/**
 * Date   :  2017/7/1
 * Author :  Hsj
 * Description :
 */
public class Demo3 {
    @Test
    public void fun() {
        CodeStudent c = new CodeStudent();
        HuStudent h = new HuStudent();
        h.setCodeStudent(c);
        h.code();
    }
}

interface Coder {
    void code();
}

class CodeStudent implements Coder {

    @Override
    public void code() {
        System.out.println("我会编码");
    }
}

class HuStudent implements Coder {
    private CodeStudent codeStudent;

    public CodeStudent getCodeStudent() {
        return codeStudent;
    }

    public void setCodeStudent(CodeStudent codeStudent) {
        this.codeStudent = codeStudent;
    }

    @Override
    public void code() {
        codeStudent.code();
        System.out.println("我会安卓");
        System.out.println("我会php");
    }

}