6_04_030421217.java

开始学JAVA老师布置的作业一学期的哦希望新手有用

public class Exer6_4
{
	static void printf(int a[]) //throws NullPointerException
	{
		if(a==null)
			throw new NullPointerException();
		for(int i=0;i<a.length;i++ )
		{			
			System.out.println(a[i]);
		}
	}
	public static void main(String[] args)
	{
		int array[]=null;		
		try{
			printf(array);
		}
		catch(NullPointerException e)
		{
			System.out.println(e.toString());
		}
		finally{
			System.out.println("Allways run finally!!");
		}
	}
}