https://blog.csdn.net/suifengyongyuan/article/details/124356203
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java的Integer中也会有缓存
https://blog.csdn.net/suifengyongyuan/article/details/124356203 默认缓存了 [-128 ~ 127] Integer…
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java的Integer中也会有缓存
https://blog.csdn.net/suifengyongyuan/article/details/124356203 默认缓存了 [-128 ~ 127] Integer…