技術標籤：java基礎

求字串中的子串出現的次數

package com.ycy3;

public class Test04 {
	public static void main(String[] args) {
		String str1 = "xyabcdabtr";
		String str2 = "ab";
		
		Test04 test = new Test04();
		int counter = test.getCounter(str1, str2);
		System.out.println(counter);
	}
	
	public
 
 int getCounter(String rawString,String subString) {
		int counter = 0;
		int index = rawString.indexOf(subString);
		while(index >= 0) {
			counter ++;
			rawString = rawString.substring(index + subString.length());
			index = rawString.indexOf(subString);
		}
		return counter;
	}
	
}