exceptiondemo.java

几个简单的java学习代码

    class MyException extends Exception{
	private int detail;
	
	MyException( int a ){
		detail = a;
	}

	public String toString( ){
		return "MyException "+detail;
	}
    }

  
    public class ExceptionDemo{

	static void compute( int a ) throws MyException{

		System.out.println("called compute("+a+")");
		
		if( a>10 )
		   throw new MyException(a);
		
		System.out.println("normal exit");
		
	}
        
	public static void main( String args[] ){

		try{
		     compute( 1 );
		     compute( 20 );
                }catch( MyException e ){
			System.out.println("Caught "+e);
		}
	}
    }



运行结果为：

C:\>java ExceptionDemo

called compute(1)

normal exit

called compute(20)

Caught MyException 20