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

Can one initialize a Java string with a single repeated character to a specific length(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)

问题描述

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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