Kode Java

 
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.apache.commons.lang.builder.EqualsBuilder;
 
import java.io.Serializable;
 
public class BookEqualsExample implements Serializable
{
    private Long id;
    private String title;
    private String author;
 
    //~ Impelments geter/setter here
 
    public boolean equals(Object object)
    {
        if (!(object instanceof BookEqualsExample))
        {
            return false;
        }
 
        if (object == this)
        {
            return true;
        }
 
        BookEqualsExample book = (BookEqualsExample) object;
        return new EqualsBuilder()
                .append(this.id, book.id)
                .append(this.title, book.title)
                .append(this.author, book.author)
                .isEquals();
 
        // You can also use reflection of the EqualsBuilder class.
        // return EqualsBuilder.reflectionEquals(this, book);
 
    }
}
 
 

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