EqualsBuilder: reflectionEquals(Object lhs, Object rhs) : EqualsBuilder « org.apache.commons.lang.builder « Java by API

1. Java by API
2. org.apache.commons.lang.builder
3. EqualsBuilder

EqualsBuilder: reflectionEquals(Object lhs, Object rhs)

/*
One>>>ReflectionBuilderTrial@1a1c887[
  name=Becker
  age=35
]
Two>>>ReflectionBuilderTrial@a32b[
  name=Becker
  age=35
]
Three>>>ReflectionBuilderTrial@1d8957f[
  name=Agassi
  age=33
]
one equals two? true
one equals three? false
One HashCode>>> 462213092
Two HashCode>>> 462213092
Three HashCode>>> -530629296
*/
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.apache.commons.lang.builder.ToStringBuilder;
import org.apache.commons.lang.builder.ToStringStyle;

public class ReflectionBuilderTrial {
    private String name = null;
    private int age = 0;

    public ReflectionBuilderTrial(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public static void main(String[] args) {
        ReflectionBuilderTrial one = new ReflectionBuilderTrial("Becker", 35);
        ReflectionBuilderTrial two = new ReflectionBuilderTrial("Becker", 35);
        ReflectionBuilderTrial three = new ReflectionBuilderTrial("Agassi", 33);

        System.out.println("One>>>" + one);
        System.out.println("Two>>>" + two);
        System.out.println("Three>>>" + three);

        System.out.println("one equals two? " + one.equals(two));
        System.out.println("one equals three? " + one.equals(three));

        System.out.println("One HashCode>>> " + one.hashCode());
        System.out.println("Two HashCode>>> " + two.hashCode());
        System.out.println("Three HashCode>>> " + three.hashCode());
    }

    public boolean equals(Object obj) {
        return EqualsBuilder.reflectionEquals(this, obj);
    }

    public String toString() {
        return ToStringBuilder.reflectionToString(this,
            ToStringStyle.MULTI_LINE_STYLE);
    }

    public int hashCode() {
        return HashCodeBuilder.reflectionHashCode(this);
    }
}

           
       

Apache-Common-Lang.zip( 248 k)

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