writeappend.java

一本书中的原代码,有用多例子,很好用

package test;
import java.io.*;

public class WriteAppend
{
    //文件路径
    private String path;
    //追加的字符串变量
    private String something;
    
    public WriteAppend()
    {
        //初始化
        path = null;
        something = "Default message";
    }
    
    public void setPath(String apath)
    {
        //设置文件路径
        path = apath;
    }
    
    public String getPath()
    {
        //获取文件路径
        return path;
    }
    
    public void setSomething(String asomething)
    {
        //设置要追加的字符串
        something = asomething;
    }
    
    public String getSomething()
    {
        //获取要追加的字符串
        return something;
    }
    
    public String writeSomething()
    {
        //追加字符串到文件
        try
        {
            //创建文件path并写入something字符串
            FileWriter theFile =new FileWriter(path,true);
            PrintWriter out = new PrintWriter(theFile);
            out.print(something+"\n");
            out.close();
            //关闭文件并返回success字符串
            theFile.close();
            return "恭喜，向文件内追加内容成功!!";
        } catch (IOException e)
        {
            return e.toString();
        }
    }
}