exceptiondemo3.java

来自「JAVA程序设计课程中各章节的程序实例。」· Java 代码 · 共 46 行

/**
*A simple exception handling example
*2004.12.25. xhcprince
*/

class ExceptionClass
{
	String name = "Bob";

	public void show()
	{
		System.out.println("name is: " + name);
	}
}

class exceptionDemo3
{
	public static void main(String args[])
	{
		try
		{
			int a=4,b=1,c;
			c = a/b;

			System.out.println("c = " + c);

			ExceptionClass obj = null;//new ExceptionClass();
			obj.show();
		}

		catch(ArithmeticException e)
		{
			System.out.println("Denominator can't be zero");
		}

		/*catch(NullPointerException e)
		{
			System.out.println("Null reference has been use to access a member");
		}*/

		catch(Exception e)
		{
			System.out.println("Unexpected error");
		}
	}
}