context.java

来自「这是学习java与设计模式一书时所必备的源代码。只有这样才能更加深刻的理解编程的」· Java 代码 · 共 17 行

package com.javapatterns.state;

public class Context {
    public void sampleOperation(){
        state.sampleOperation();
    }

    public void setState(State state){
            this.state = state;
        }

    /**
     * @link aggregation 
     */
    private State state;
}