本文实例讲述了Java统计字符串中字符出现次数的方法。分享给大家供大家参考,具体如下:

package com.wenzhi;
import java.util.Scanner;
public class Test01 {
public static void main(String args[]) {
Scanner scan = new Scanner(System.in);
System.out.println("请你输入字符");
String str = scan.nextLine();
Scanner scan1 = new Scanner(System.in);
System.out.println("请输入你要查找的子字符串");
String str1 = scan1.nextLine();
int count = 0;
int start = 0;
while (str.indexOf(str1, start) >= 0 && start < str.length()) {
count++;
start = str.indexOf(str1, start) + str1.length();
}
System.out.println(str1 + "在" + str + "出现的次数为" + count);
}
}
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