class MyThreadScopeData {     // 單例    private MyThreadScopeData() {    }     // 提供獲取實例方法    public static synchronized MyThreadScopeData getThreadInstance() {        // 從當前線程范圍內數據集中獲取實例對象        MyThreadScopeData instance = map.get();        if (instance == null) {            instance = new MyThreadScopeData();            map.set(instance);        }        return instance;    }     // 將實例對象存入當前線程范圍內數據集中    private static MyThreadScopeData instance = null; // 饑餓模式     private String name;    private int age;     public String getName() {        return name;    }     public void setName(String name) {        this.name = name;    }     public int getAge() {        return age;    }     public void setAge(int age) {        this.age = age;    }}