// System.out.println(f.createAndDeleteFile("f:\\ss\\","TestFile.dat"));
String[] ss = new String[50];
for(int i=0;i<ss.length;i++)
{
ss[i] = "信息技术和互联网(计算机软硬件,通讯) "+i;
}
f.writeFile("f:\\ss\\","TestFile.txt",ss);
}
/**
* 文件的写入
* @param filePath(文件路径)
* @param fileName(文件名)
* @param args[]
* @throws IOException
*/
public void writeFile(String filePath,String fileName,String[] args) throws IOException
{
FileWriter fw = new FileWriter(filePath+fileName);
PrintWriter out=new PrintWriter(fw);
for(int i=0;i<args.length;i++)
{
out.write(args[i]);
out.println();
out.flush();
}
fw.close();
out.close();
}
/**
* 文件的写入
* @param filePath(文件路径)
* @param fileName(文件名)
* @param args
* @throws IOException
*/
public void writeFile(String filePath,String fileName,String args) throws IOException
{
FileWriter fw = new FileWriter(filePath+fileName);
fw.write(args);
fw.close();
}
/**
* 创建与删除文件
* @param filePath
* @param fileName
* @return 创建成功返回true
* @throws IOException
*/
public boolean createAndDeleteFile(String filePath,String fileName) throws IOException
{
boolean result = false;
File file = new File(filePath,fileName);
if(file.exists())
{
file.delete();
result = true;
System.out.println("文件已经删除！");
}
else
{
file.createNewFile();
result = true;
System.out.println("文件已经创建！");
}
return result;
}
/**
* 创建和删除目录
* @param folderName
* @param filePath
* @return 删除成功返回true
*/
public boolean createAndDeleteFolder(String folderName,String filePath)
{
boolean result = false;
try
{
File file = new File(filePath+folderName);
if(file.exists())
{
file.delete();
System.out.println("目录已经存在，已删除!");
result = true;
}
else
{
file.mkdir();
System.out.println("目录不存在，已经建立!");
result = true;
}
}
catch(Exception ex)
{
result = false;
System.out.println("CreateAndDeleteFolder is error:"+ex);
}
return result;
}
/**
* 输出目录中的所有文件及目录名字
* @param filePath
*/
public void readFolderByFile(String filePath)
{
File file = new File(filePath);
File[] tempFile = file.listFiles();
for(int i = 0;i<tempFile.length;i++)
{
if(tempFile[i].isFile())
{
System.out.println("File : "+tempFile[i].getName());
}
if(tempFile[i].isDirectory())
{
System.out.println("Directory : "+tempFile[i].getName());
}
}
}
/**
* 检查文件中是否为一个空
* @param filePath
* @param fileName
* @return 为空返回true
* @throws IOException
*/
public boolean fileIsNull(String filePath,String fileName) throws IOException
{
boolean result = false;
FileReader fr = new FileReader(filePath+fileName);
if(fr.read() == -1)
{
result = true;
System.out.println(fileName+" 文件中没有数据!");
}
else
{
System.out.println(fileName+" 文件中有数据!");
}
fr.close();
return result;
}
/**
* 读取文件中的所有内容
* @param filePath
* @param fileName
* @throws IOException
*/
public void readAllFile(String filePath,String fileName) throws IOException
{
FileReader fr = new FileReader(filePath+fileName);
int count = fr.read();
while(count != -1)
{
System.out.print((char)count);
count = fr.read();
