【Java开源代码栏目提醒】:网学会员,鉴于大家对Java开源代码十分关注,论文会员在此为大家搜集整理了“BookPK.java”一文,供大家参考学习!
package com.learn
weblogic.examples.ch9.cmp;
import java.io.Serializable;
public final class BookPK implements Serializable {
public int copyNumber;
public String isbn;
public BookPK() {}
public BookPK(String isbn, int copyNumber) {
this.copyNumber = copyNumber;
this.isbn = isbn;
}
public int hashCode() {
return copyNumber ^ isbn.hashCode();
}
public boolean equals(Object o) {
if (o instanceof BookPK) {
BookPK other = (BookPK) o;
return other.copyNumber == copyNumber &&
other.isbn.equals(isbn);
} else {
return false;
}
}
public String toString() {
return "[BookPK] copyNumber: "+copyNumber+ " isbn: "+isbn;
}
}