complete10_3.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

package questions.c10;
public class Complete10_3 {
   private String name = "";
   private Integer stockNumber = new Integer( -1 );
   private Double price = new Double( 0.00 );
   public Complete10_3( String initName,
                        int initStockNumber,
                        double initPrice ) {
      name = initName;
      stockNumber = new Integer( initStockNumber );
      price = new Double( initPrice );
   }
   // put your hashCode method here
   public boolean equals( Object obj ) {
      Complete10_3 other = (Complete10_3) obj;
      return ( name.equals( other.name )
               && stockNumber.equals( 
                  other.stockNumber )
               && price.equals( other.price ) );
   }
   public static void main( String[] args ) {
      Complete10_3 x = new Complete10_3( "wrench",
                                         1239067,
                                         4.99 );
      Complete10_3 y = new Complete10_3( "wrench",
                                         1239067,
                                         4.99 );
      System.out.println( x.equals( y ) );
      System.out.println(
           x.hashCode() == y.hashCode() );
   }
}