raf.close(); Java RandomAccessFile Example Here is a complete java RandomAccessFile example with different read and write operations. package com.journaldev.files; import java.io.IOException; import java.io.RandomAccessFile; public class RandomAccessFileExample { public static void main(String[] ar...
importjava.io.RandomAccessFile;importjava.io.IOException;publicclassRandomAccessFileExample{publicstaticvoidmain(String[]args){try{// 创建一个 RandomAccessFile 对象,用于读写文件RandomAccessFileraf=newRandomAccessFile("example.txt","rw");// 写入数据raf.writeUTF("Hello, World!");// 移动文件指针到...
importjava.io.IOException;importjava.io.RandomAccessFile;publicclassRandomAccessFileExample{publicstaticvoidmain(String[]args){StringfilePath="example.txt";try(RandomAccessFileraf=newRandomAccessFile(filePath,"rw")){// 移动到第二行的开始位置raf.seek(36);// 第二行的"modify"的起始位置// 读取"mod...
java import java.io.RandomAccessFile; 创建一个RandomAccessFile对象,并指定写入的文件路径和打开模式: 使用RandomAccessFile的构造方法创建一个对象,指定要写入的文件路径(或文件对象)和模式("rw"表示读写模式,如果文件不存在则创建)。 java RandomAccessFile raf = new RandomAccessFile("example.txt", "rw")...
import java.io.RandomAccessFile;import java.io.IOException;public class RandomAccessFileExample { public static void main(String[] args) { try { // 创建一个 RandomAccessFile 对象，以读写方式打开文件 RandomAccessFile raf = new RandomAccessFile("example.txt", "rw");// 进行读写操作...// ...
```java import java.io.RandomAccessFile; import java.io.IOException; import java.io.FileNotFoundException; import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; public class RandomAccessFileExample { private static final String FILE_PATH = "test.txt"; public stat...
public class RandomAccessFileExample { public static void main(String[] args) throws IOException { // out.txt 此时的文件内容为 "123456789" RandomAccessFile file = new RandomAccessFile("D:\\out.txt", "rw"); System.out.println("pointer: " + file.getFilePointer()); // 输出 pointer: 0 ...
importjava.io.FileNotFoundException;importjava.io.IOException;importjava.io.RandomAccessFile;/*** @ClassName RandomAccessFileExample * @projectName: object1 *@author: Zhangmingda * @description: XXX * date: 2021/4/18.*/publicclassRandomAccessFileExample {publicstaticvoidmain(String[] args) { ...
importjava.io.RandomAccessFile;publicclassReadLatestFileContent{publicstaticvoidmain(String[]args){try{// 创建RandomAccessFile对象RandomAccessFileraf=newRandomAccessFile("example.txt","r");// 获取文件长度longfileLength=raf.length();// 定位到文件的末尾raf.seek(fileLength);// 读取最新内容Stringlatest...
- "rwd":读写模式,可以读取和写入文件内容。如果文件不存在,则创建新文件;如果文件存在,则删除原有内容并覆盖。 例如,创建一个只读模式的RandomAccessFile对象: ```java RandomAccessFile raf = new RandomAccessFile("example.txt", "r"); ```©...