可以将具有单个重复字符的Java字符串初始化为特定长度吗
我想创建一个具有以下签名的函数:
I'd like to create a function that has the following signature:
public String createString(int length, char ch)
它应该返回一个指定长度的重复字符的字符串.
例如，如果长度为 5 且 ch 为 'p'，则返回值应为:
It should return a string of repeating characters of the specified length.
For example if length is 5 and ch is 'p' the return value should be:
ppppp
有没有办法做到这一点而无需循环直到达到所需的长度?
并且没有任何外部定义的常量?
Is there a way to do this without looping until it is the required length?
And without any externally defined constants?
推荐答案
char[] chars = new char[len];
Arrays.fill(chars, ch);
String s = new String(chars);
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