实例里面的静态对象、静态实例里面的私有对象 用起来一样吗?
比特灵 2013-01-23 10:45:22 例如:
-------------情况1-------------
public class A{
private static HashMap hm = new HashMap();
public String getVal(String k){
return (String)hm.get(k);
}
}
public class X{
A a = new A();
public void test(){
a.getVal("test"); //
}
}
-------------情况2-------------
public class B{
private HashMap hm = new HashMap();
public String getVal(String k){
return (String)hm.get(k);
}
}
public class X{
private static B b = new B();
public void test(){
b.getVal("test");
}
}
...