1.Once declared and allocated(even for local arrays inside methods),array elements are automatically initialized to the default values.(0 for numeric arrays,false for boolean,'\0' for character arrays,and null for objects).
2.If only declared(not constructed),member array variables default to null, but local array variables will not default to null(compile error).
就是这里的local array和member array。
2.If only declared(not constructed),member array variables default to null, but local array variables will not default to null(compile error).
就是这里的local array和member array。
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