overridethrows.java

疯狂Java讲义_源码(含Java设计模式CHM

import java.io.*;
/**
 * Description:
 * <br/>Copyright (C), 2005-2008, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee [e-mail]
 * @version  1.0
 */

public class OverrideThrows
{
	public void test()throws IOException
	{
		FileInputStream fis = new FileInputStream("a.txt");
	}
}
class Sub extends OverrideThrows
{
	//下面代码无法通过编译:子类方法声明抛出了比父类方法更大的异常
	public void test()throws Exception
	{
		//...
	}
}