用递归实现的删除文件夹，很简单，功能也很强，非空文件夹也能删除！
package file;
import java.io.File;
public class DeleteAllFile ...{
public static void main(String args[]) ...{
clearTmpFile(new File("c:/forLiu"));
}
private static void clearTmpFile(File tmpFile) ...{
if (!tmpFile.exists()) ...{
System.out.println("file is not exist!");
return;
}
if (tmpFile.isDirectory()) ...{
File[] fileList = tmpFile.listFiles();
for (int i = 0; i < fileList.length; i++) ...{
if (fileList[i].isDirectory()) ...{
clearTmpFile(fileList[i]);
}
if (fileList[i].delete()) ...{
System.out.println("Temp file:""
+ fileList[i].getAbsolutePath()
+ "" has been deleted.");
}
}
if (tmpFile.delete()) ...{
System.out.println("Temp file:"" + tmpFile.getAbsolutePath()
+ "" has been deleted.");
}
} else ...{
if (tmpFile.delete()) ...{
System.out.println("Temp file:"" + tmpFile.getAbsolutePath()
+ "" has been deleted.");
}
}
}
}
package file;import java.io.File;public class DeleteAllFile ...{ public static void main(String args[]) ...{ clearTmpFile(new File("c:/forLiu")); } private static void clearTmpFile(File tmpFile) ...{ if (!tmpFile.exists()) ...{ System.out.println("file is not exist!"); return; } if (tmpFile.isDirectory()) ...{ File[] fileList = tmpFile.listFiles(); for (int i = 0; i < fileList.length; i++) ...{ if (fileList[i].isDirectory()) ...{ clearTmpFile(fileList[i]); } if (fileList[i].delete()) ...{ System.out.println("Temp file:"" + fileList[i].getAbsolutePath() + "" has been deleted."); } } if (tmpFile.delete()) ...{ System.out.println("Temp file:"" + tmpFile.getAbsolutePath() + "" has been deleted."); } } else ...{ if (tmpFile.delete()) ...{ System.out.println("Temp file:"" + tmpFile.getAbsolutePath() + "" has been deleted."); } } }}