datainterface.java

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/**
 * @(#)DataInterface.java
 * @The interface of the data of the system.
 *
 * @Link Scholes
 * @version 1.00 2008/7/21
 */

package Data;

//Java core packages
import java.io.*;

public interface DataInterface
{
	//turn the object to String
	public String toString();
	
	//create a file if not existed
	public void create() throws IOException;
	
	//read the contents of the file
	public void read() throws IOException;
	
	//write the contents of the object to the file
	public void write() throws IOException;
}	//end class DataInterface