complete7_3.java

来自「北京大学出版社的」· Java 代码 · 共 10 行

package questions.c7;
public class Complete7_3 {
   public static void f( Number n ) {
      // your code here
   }
   public static void main( String[] args ) {
      f( new Integer( 23 ) );
      f( new Double( 3.14 ) );
   }
}