【发布时间】:2012-05-09 15:44:19
【问题描述】:
public String(String original) {
int size = original.count;
char[] originalValue = original.value;
char[] v;
if (originalValue.length > size) {
// The array representing the String is bigger than the new
// String itself. Perhaps this constructor is being called
// in order to trim the baggage, so make a copy of the array.
int off = original.offset;
v = Arrays.copyOfRange(originalValue, off, off+size);
} else {
// The array representing the String is the same
// size as the String, so no point in making a copy.
v = originalValue;
}
this.offset = 0;
this.count = size;
this.value = v;
}
对不起,如果我是愚蠢的,但我不明白。 count 和 value 字段是私有的,但是这段代码似乎以某种方式直接达到了这些值。这怎么可能?
【问题讨论】:
标签: java string constructor private field