字符串处理---统计每一行字符串当中的字符“u”个数

package com.guoxiaoming.string;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;

//处理多个字符串输入,每个输入占据一行
//统计每一行当中的u字符的个数
public class CountCharacter {

	public static void main(String[] args) {
		new CountCharacter().getResult();
	}

	private void getResult() {
		BufferedReader br = null;
		try {
			br = new BufferedReader(new InputStreamReader(new FileInputStream(
					"src/com/guoxiaoming/string/test.txt")));
			String str = null;
			int count = 0;
			while ((str = br.readLine()) != null) {

				for (int i = 0; i < str.length(); i++) {
					if (str.charAt(i) == 'u') {
						count++;
					}
				}
				System.out.println("The count of 'u' is " + count);
				count = 0;
				str = null;
			}
		} catch (FileNotFoundException ex) {
			System.out.println("file not found!");
		} catch (IOException ex) {
			ex.printStackTrace();
		}

	}

}

  

The count of 'u' is 11
The count of 'u' is 1

原文地址:https://www.cnblogs.com/wuxinliulei/p/4444505.html