使用org.apache.commons.io.FileUtils寫文件

import java.io.File;
import java.io.IOException;
import org.apache.commons.io.FileUtils;

public class SetContent {
    public static void main(String[] args) {
        try {

        // We take a reference to an actual file on disk
        File file = new File("test.txt");

        // We set the string to be written to the file
        String data = "Hi,test!!!";

        // We write to the file with writeStringToFile Method
        FileUtils.writeStringToFile(file, data);

        // We test the result
        String content = FileUtils.readFileToString(file);   
        System.out.println("Content : " + content);

    } catch (IOException e) {
        e.printStackTrace();
    }

}

}</pre>