java代码如何实现----字符串写入到txt文件呢?

字符串写入到文本文件中的实现思路

1.生成一个PrintStream对象或BufferedWriter
2.将字符串写入到流中
  采用这种方式即可实现字符串写入到txt中

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.RandomAccessFile;
 
public class TestClass {
 
    public void WriteStringToFile(String filePath) {
        try {
            File file = new File(filePath);
            PrintStream ps = new PrintStream(new FileOutputStream(file));
            ps.println("https://www.java265.com");// 往文件里写入字符串
            ps.append("https://www.java265.com");// 在已有的基础上添加字符串
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
 
    public void WriteStringToFile2(String filePath) {
        try {
            FileWriter fw = new FileWriter(filePath, true);
            BufferedWriter bw = new BufferedWriter(fw);
            bw.append("zhuijiazifuchuan");
            bw.write("xiaoxiao\r\n ");// 往已有的文件上添加字符串
            bw.write("gougou\r\n ");
            bw.write("不知道插入什么 ");
            bw.close();
            fw.close();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
 
    public void WriteStringToFile3(String filePath) {
        try {
            PrintWriter pw = new PrintWriter(new FileWriter(filePath));
            pw.println("ceshi ");
            pw.println("niuniu ");
            pw.println("maomao ");
            pw.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
 
    public void WriteStringToFile4(String filePath) {
        try {
            RandomAccessFile rf = new RandomAccessFile(filePath, "rw");
            rf.writeBytes("op\r\n");
            rf.writeBytes("app\r\n");
            rf.writeBytes("java是我最喜欢的编程语言");
            rf.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
 
    public void WriteStringToFile5(String filePath) {
        try {
            FileOutputStream fos = new FileOutputStream(filePath);
            String s = "java265最牛的编程网站";
            fos.write(s.getBytes());
            fos.close();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
 
    public static void main(String[] args) {
        String filePath = "d:\\test.txt";
        // new WriteStringToTxt().WriteStringToFile(filePath);
        // new WriteStringToTxt().WriteStringToFile2(filePath);
        // new WriteStringToTxt().WriteStringToFile3(filePath);
        // new WriteStringToTxt().WriteStringToFile4(filePath);
        new WriteStringToTxt().WriteStringToFile5(filePath);
    }
}