kotlin.Pair Maven / Gradle / Ivy

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package kotlin;

import java.io.Serializable;

public class Pair implements Serializable {
    private final A first;
    private final B second;

    public Pair(A first, B second) {
        this.first = first;
        this.second = second;
    }

    public A component1() {
        return first;
    }

    public B component2() {
        return second;
    }

    public A getFirst() {
        return first;
    }

    public B getSecond() {
        return second;
    }

    @Override
    public String toString() {
        return "(" + first + ", " + second + ")";
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        Pair pair = (Pair) o;

        if (first != null ? !first.equals(pair.first) : pair.first != null) return false;
        return second != null ? second.equals(pair.second) : pair.second == null;
    }

    @Override
    public int hashCode() {
        int result = first != null ? first.hashCode() : 0;
        result = 31 * result + (second != null ? second.hashCode() : 0);
        return result;
    }
}