class Test6_4 {
	static void demoproc () {
		try {
			throw new NullPointerException("demo");
		} catch ( NullPointerException e ) {
			System.out.println("throw׳쳣");   //ӡϢ
			throw e;            //׳쳣
		}
	}
	public static void main ( String args[] ) {
		try {
			demoproc();
		} catch ( NullPointerException e ) {
			System.out.println("²" + e );
		}
	}
}    
