文件内容：
/**
* 将 list 写入文件中
*/
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.swing.filechooser.FileSystemView;
public class writeListToFile {
public static void main(String[] args) {
FileSystemView fsv = FileSystemView.getFileSystemView();
File com = fsv.getHomeDirectory();
String deskPath = com.getPath();
System.out.println( deskPath );
File file = new File( deskPath + "\\" + "aa.txt" );
List<String> list = new ArrayList<String>();
list.add( "123" );
list.add( "second" );
list.add( "third" );
BufferedWriter bw = null;
try {
bw = new BufferedWriter( new FileWriter(file) );
for(int i = 0; i < list.size(); i++ ) {
bw.write( list.get(i) );
bw.newLine();
}
bw.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
进入桌面，打开 aa.txt 文档，如下图：
