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问题 This question already has answers here : What is the difference between a variable, object, and reference? [duplicate] (5 answers) Closed 5 years ago . What happens if I do: Object obj = new Object(); obj = null; Does it remove the object from memory, or clear just the reference? More formally, consider the code: Object obj = new Object(); Object temp = obj; obj = null; Why is temp still not null ? Shouldn't it have been removed from memory? 回答1: In your first example: obj -------> |OBJECT|

问题 This question already has answers here : What is the difference between a variable, object, and reference? [duplicate] (5 answers) Closed 5 years ago . What happens if I do: Object obj = new Object(); obj = null; Does it remove the object from memory, or clear just the reference? More formally, consider the code: Object obj = new Object(); Object temp = obj; obj = null; Why is temp still not null ? Shouldn't it have been removed from memory? 回答1: In your first example: obj -------> |OBJECT|

问题 This question already has answers here : What is the difference between a variable, object, and reference? [duplicate] (5 answers) Closed 5 years ago . What happens if I do: Object obj = new Object(); obj = null; Does it remove the object from memory, or clear just the reference? More formally, consider the code: Object obj = new Object(); Object temp = obj; obj = null; Why is temp still not null ? Shouldn't it have been removed from memory? 回答1: In your first example: obj -------> |OBJECT|

来源： https://stackoverflow.com/questions/64090580/null-being-assigned-as-object-in-tail-recursive-function

来源： https://stackoverflow.com/questions/63616869/outlook-add-in-calendar-event-recurrence-is-always-null

来源： https://stackoverflow.com/questions/63616869/outlook-add-in-calendar-event-recurrence-is-always-null

来源： https://stackoverflow.com/questions/5798863/how-do-i-get-null-into-a-mysql-integer-column-with-php-mysqli

来源： https://stackoverflow.com/questions/5798863/how-do-i-get-null-into-a-mysql-integer-column-with-php-mysqli

来源： https://stackoverflow.com/questions/27065195/null-after-injectmocks

来源： https://stackoverflow.com/questions/27065195/null-after-injectmocks