context.java

来自「《Java与模式》一书的源代码」· Java 代码 · 共 18 行

package com.javapatterns.state;

public class Context
{
    private State state;

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

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

}