javaÎļþ²Ù×÷

 1.´´½¨Îļþ¼Ð 
File myFolderPath = new File(%%1); 
try { 
if (!myFolderPath.exists()) { 
     myFolderPath.mkdir(); 
} 
} 
catch (Exception e) { 
System.out.println("н¨Ä¿Â¼²Ù×÷³ö´í"); 
e.printStackTrace(); 
}  
 
2.´´½¨Îļþ 
File myFilePath = new File(%%1); 
try { 
if (!myFilePath.exists()) { 
myFilePath.createNewFile(); 
} 
FileWriter resultFile = new FileWriter(myFilePath); 
PrintWriter myFile = new PrintWriter(resultFile); 
myFile.println(%%2); 
resultFile.close(); 
} 
catch (Exception e) { 
System.out.println("н¨Îļþ²Ù×÷³ö´í"); 
e.printStackTrace(); 
}  
 
3.ɾ³ýÎļþ 
File myDelFile = new File(%%1); 
try { 
myDelFile.delete(); 
} 
catch (Exception e) { 
System.out.println("ɾ³ýÎļþ²Ù×÷³ö´í"); 
e.printStackTrace(); 
}  
 
4.ɾ³ýÎļþ¼Ð 
File delFolderPath = new File(%%1); 
try { 
delFolderPath.delete(); //ɾ³ý¿ÕÎļþ¼Ð 
} 
catch (Exception e) { 
System.out.println("ɾ³ýÎļþ¼Ð²Ù×÷³ö´í"); 
e.printStackTrace(); 
}  
 
5.ɾ³ýÒ»¸öÎļþϼÐËùÓеÄÎļþ¼Ð 
File delfile=new File(%%1); 
File[] files=delfile.listFiles(); 
for(int i=0;i<files.length;i++){ 
if(files[i].isDirectory()){ 
files[i].delete(); 
    } 
}  
 
6.Çå¿ÕÎļþ¼Ð 
File delfilefolder=new File(%%1); 
try { 
if (!delfilefolder.exists()) { 
delfilefolder.delete(); 
} 
delfilefolder.mkdir(); 
} 
catch (Exception e) { 
System.out.println("Çå¿ÕĿ¼²Ù×÷³ö´í"); 
e.printStackTrace(); 
}  
 
7.¶ÁÈ¡Îļþ 
// ÖðÐжÁÈ¡Êý¾Ý 
FileReader fr = new FileReader(%%