Java-公共字符串（char []值）

Question

我的问题是关于：Public String（char [] value）。有人可以帮我吗：它是否在内部为每个值[i]循环。特别，

Public String（char [] value）的含义是：

for each char[i]
returnedSTRING = returnedSTRING + char[i] 

或不 ？

Answer 1

Java是开放源代码，如果将源代码附加到Eclipse，则始终可以使用F3来检查功能。在这种情况下，String类具有以下所要查找的构造函数：

/**
 * Allocates a new {@code String} so that it represents the sequence of
 * characters currently contained in the character array argument. The
 * contents of the character array are copied; subsequent modification of
 * the character array does not affect the newly created string.
 *
 * @param  value
 *         The initial value of the string
 */
public String(char value[]) {
    int size = value.length;
    this.offset = 0;
    this.count = size;
    this.value = Arrays.copyOf(value, size);
}

编辑：如果您想知道，Arrays.copyOf调用System.arraycopy。