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jAvA读取list 内容

for(int i=0; i

List lst = new LinkedList();BufferedReader reader = new BufferedReader(new FileReader(new File("file path")));try { String line = null; while ((line = reader.readLine()) != null) { lst.add(line); }} finally { reader.close();}fo...

for循环 List list = new ArrayList(); for (int i = 0; i < list.size(); i++) { System.out.println(list.get(i)); }

import java.io.BufferedReader; import java.io.FileReader; import java.util.LinkedList; public class Main { public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new FileReader("d:/...

import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.Collections; import java.util.List; public class sss { /** * @pa...

假定txt文件中每行的内容为:姓名,年龄,密码 各字段用“,”(逗号)分隔,编写代码以下:import java.io.*;import java.util.*;public class Test{public static void main(String args ){ArrayListUser userInfo=new ArrayListUser();try{Buff...

文件放在与生成的class文件的相同目录 File filename = new File("file.txt"); InputStreamReader reader = null; try { reader = new InputStreamReader( new FileInputStream(filename)); } catch (FileNotFoundException e) { // TODO Auto-g...

可以通过size方法获取到总条数,可以通过get方法获取到数据内容(即可是任何对象)。 实体类型如果为数组的话,可以直接通过list的add方法进行添加转换,举例: List list = new ArrayList();//定义一个数组类型的list对象 String[] entity = n...

public static void main(String[] args) { // TODO Auto-generated method stub File file = new File("C:/zc.txt"); BufferedReader reader = null; String tempString = null; int line =1; try { System.out.println("以行为单位读取文件内...

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