myexception.java

《Java程序设计与应用》-张仕斌-源程序 《Java程序设计与应用》-张仕斌-源程序

class CCOutOfAge extends Exception 
{
	public String toString(){
		return "data is out of rang";
	} 
}
	
class COutOfAge{
	private int age=0;
	public void setAge(int a) throws CCOutOfAge
	{
		if ((a<0) || (a>120)) {
			throw new CCOutOfAge();
		}
		else
		  age=a;
	}  	

	public void showage()
	{
		System.out.println("age is "+ age);	
	}
}	
	
	public class myexception{
	public static void main(String args[]) { 
	int a = -5; 	
	COutOfAge age=new COutOfAge();
	try { 
		age.setAge(a);			
		} 
	catch(Exception e) {
		System.out.println(e.toString());
		}	
	age.showage();	
	}
}