Java的IO流操作：文件读写示例-蒲公英云

Java的IO流操作：文件读写示例

原创水深无声 2024-12-01 07:12 109阅读 0赞

在Java中，我们可以使用io包中的类来实现文件的读写。以下是一些基本的示例：

文件读取：
```java
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class ReadFile {
public static void main(String[] args) {
File file = new File(“path_to_your_file.txt”); // Replace with your file path

    try (FileInputStream fis = new FileInputStream(file)) {
        byte[] buffer = new byte[1024]; // Change the size as per requirement
        while (true) {
            int readBytes = fis.read(buffer);
            if (readBytes == -1) { // Break condition for end of file
                break;
            }
            System.out.println(new String(buffer, 0, readBytes))));
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

}

2. 文件写入：
```java
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
public class WriteFile {
    public static void main(String[] args) {
        File file = new File("path_to_your_file.txt"); // Replace with your file path
        try (FileWriter writer = new FileWriter(file)) {
            writer.write("Hello, World! \n This is a sample text."); // Your data to be written
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}