import java.sql.*;
import java.util.Scanner;
class CountSubString{
void countSubString(String s,String substring){
int count=0,i;
while(s.contains(substring)){
i=s.indexOf(substring);
s=s.substring(i+substring.length());
count++;
}
System.out.println("检索到"+count+"个子串"+substring);
}
}
public class CountString {
public static void main(String[] args) {
Scanner reader= new Scanner(System.in);
System.out.println("请输入字符串:");
String s = reader.nextLine();
System.out.println("请输入你要检索的子串:");
String substring = reader.nextLine();
CountSubString a = new CountSubString();
a.countSubString(s,substring);
}
}
觉得有用的话采纳一下哈