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Fact final variable and final variable

2022-04-23 06:00:00 【hanyc..】

In fact, the final variable refers to the quantity that will not be changed once it is assigned , Doesn't mean it has to be final modification Talent .

For example, in a certain method, there is int a = 23; And this variable a After this is initialized and assigned , Its value has never been changed again （ Although it itself can be changed ）, So this a It can be called the fact final variable .

The final variable ： Use keywords final Declared variables are called final variables . The final variable can only be assigned once （ In other words, once initialized, the value of the variable can no longer be changed ）

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