如何计算 Java 字符串中的字符数?
声明一个整数,用 0 初始化,然后在 for 循环中为每个字符递增该整数。
示例
public class Sample { public static void main(String args[]) { String str = new String("Hi welcome to Tutorialspoint"); int count = 0; for(int i = 0; i<str.length(); i++) { count++; } System.out.println("Number characters in the given string (including spaces) "+count); } }
输出
Number characters in the given string (including spaces) 28
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