nottextfileexception.java

1．文件和目录管理

/**
 * NotTextFileException extends Exception throws when stastic a file 
 * but the file is not a text file and show a message dialog 
 */

package file;
import java.io.*;
import javax.swing.*;
public class NotTextFileException extends Exception {
	
	public NotTextFileException(String fileName){
		super(fileName);
		JOptionPane.showMessageDialog(null,fileName 
			+ "  is not a text file !!");
	}
}