public boolean equals(Object anObject) {
if (this == anObject) {
return true;
}
if (anObject instanceof String) {
String anotherString = (String)anObject;
int n = count;
if (n == anotherString.count) {
char v1[] = value;
char v2[] = anotherString.value;
int i = offset;
int j = anotherString.offset;
while (n-- != 0) {
if (v1[i++] != v2[j++])
return false;
}
return true;
}
}
return false;
}
这里面的Count值是如何获取的?
/** The count is the number of characters in the String. */
private final int count;
这里声明的是final类型的成员变量 默认值是0 那么这里的equal中Count值肯定不是0 各位大神赐教
final类型的成员变量可以在对象的初始化代码中赋值一次。
以下代码均是可以编译通过的:
private final int count = 10;
private final int count;
public 构造函数() {
count = 10;
}
private final int count;
{
count = 10;
}