The*_*des 0 java int numbers char
举个例子呢
char x = '1';
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占用的空间比
int x = 1;
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还是一样的?
char占用2个字节,int占用4个字节.
所以,是的.char占用更少的空间.
https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html