利用java怎么在file尾部添加数据

package cn.com; import java.io.FileWriter; import java.io.RandomAccessFile; public class FileTest {  public static void main(String[] args) {   FileTest fileTest = new FileTest();   fileTest.addContentFirst("F:\\temp.txt", "test1");   fileTest.addContentSecond("F:\\temp.txt", "test2");  }   public void addContentFirst(String filePath, String newContent) {   try {    RandomAccessFile randomAccessFile=new RandomAccessFile(filePath, "rw");    long fileLength=randomAccessFile.length();    randomAccessFile.seek(fileLength);    randomAccessFile.write(newContent.getBytes("UTF-8"));    randomAccessFile.close();   } catch (Exception e) {   }  }   public void addContentSecond(String filePath, String newContent) {   try {    FileWriter fileWriter=new FileWriter(filePath, true);    fileWriter.write(newContent);    fileWriter.close();   } catch (Exception e) {   }  } }