c.java

程序练习中包括书中实例程序代码和练习中要用到的代码,是压缩文件

class B {
   int f( int i) {
      return i + i;
   }
   int f( int i, int j ) {
      return i + j;
   }
   int f( char c ) {
      return c;
   }
}
public class C extends B {
   int f( int i, int j ) {
      return super.f( i, j );
   }
   int f( int i ) {
      return -i;
   }
   double f( double d ) {
      return Math.sqrt( d );
   }
   public static void main( String[] args ) {
      C c = new C();
      B b = new B();
      System.out.println( c.f( 5, 10 ) + " " +
                          ( ( B )c ).f( 4 ) + " " +
                          c.f( 9D ) + " " +
                          c.f( 'A' ) );
   }
}