[java]
=====TestSingleTon1 wrong test=====
=====TestSingleTon1 right test=====
get instance methord...
constructor methord...
false 148669801
get instance methord...
false 148669801
=====TestSingleTon2 wrong test=====
=====TestSingleTon2 right test=====
constructor methord...
get instance methord...
false 1690552137
get instance methord...
false 1690552137
=====TestSingleTon1 wrong test=====
=====TestSingleTon1 right test=====
get instance methord...
constructor methord...
false 148669801
get instance methord...
false 148669801
=====TestSingleTon2 wrong test=====
=====TestSingleTon2 right test=====
constructor methord...
get instance methord...
false 1690552137
get instance methord...
false 1690552137
[plain]
验证不存在才去new的情况
验证不存在才去new的情况
但！是！要！注！意！
真正的单例模式的构造函数用private声明，而不是上面的public，我测试才用public。