Item4:Enforce noninstantiability with a private constructor
通过构造私有化，禁止对象被实例化。
public class UtilClass {
private UtilClass(){
//防止类内的函数调用构造函数创建对象
throw new AssertionError();
}
}
相关文章
- 02-09Item 4: Enforce noninstantiability with a private constructor.
- 02-09Effective Java Item3:Enforce the singleton property with a private constructor or an enum type
- 02-09Effective Java Item4:Enforce noninstantiability with a private constructor
- 02-09Effective Java 04 Enforce noninstantiability with a private constructor