Impl hash code

Hello

I have the equals method
 public boolean equals(Object o) {
         if (o == null) {
              return false;
         }
         if (!(o instanceof ProductCategoryType)){ 
              return false;
         }
         else {
              return (this.orderNbr == (((ProductCategoryType) o).orderNbr));
         }
    }
I need to write the hash code to do this, can you help me.

I would this.orderNbr.hashCode () if orderNbr is an object, otherwise something like this.orderNbr * 37 if it is a primitive type. The 37 could really be any prime number.

Tags: Java

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