intanceof/isInstance/isAssignableFrom区别
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本文介绍intanceof/isInstance/isAssignableFrom区别。
- instanceof:用来判断对象是否是类的实例
- isInstance:用来判断对象是否属于某个类型的实例,与instanceof等价
- isAssignableFrom:用来判断类型间是否存在派生关系
举例如下
System.out.println(ArrayList.class.isAssignableFrom(Object.class));//false
System.out.println(Object.class.isAssignableFrom(ArrayList.class));//true
System.out.println("cnxieyang" instanceof String);//true
System.out.println(String.class.isInstance("cnxieyang"));
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- intanceof/isInstance/isAssignableFrom区别
- instanceof, isinstance, isAssignableFrom 区别
- instanceof, isinstance,isAssignableFrom的区别
- instanceof, isinstance,isAssignableFrom的区别
- instanceof, isinstance,isAssignableFrom的区别
- instanceof, isinstance,isAssignableFrom的区别
- instanceof, isinstance,isAssignableFrom的区别
- instanceof, isinstance,isAssignableFrom的区别
- instanceof, isinstance,isAssignableFrom的区别
- instanceof, isinstance,isAssignableFrom的区别
- instanceof, isinstance,isAssignableFrom的区别
- instanceof, isinstance,isAssignableFrom的区别
- instanceof, isinstance,isAssignableFrom的区别
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