String s1=new String("abc") 与 String s2=new String("abc")的hashCode为什么是相等的

[此贴子已经被作者于2006-10-3 23:09:16编辑过]

建议你看一看String类的hashCode方法
public int hashCode() {
int h = hash;
if (h == 0) {
int off = offset;
char val[] = value;
int len = count;

for (int i = 0; i < len; i++) {
h = 31*h + val[off++];
}
hash = h;
}
return h;
}