/Java/Comparable on a generic class java

Comparable on a generic class java

    public class DoubleKey<K extends Comparable<K>, J extends Comparable<J>>
        implements Comparable<DoubleKey<K, J>> {

    private K key1;
    private J key2;

    public DoubleKey(K key1, J key2) {
        this.key1 = key1;
        this.key2 = key2;
    }

    public K getFirstKey() {
        return this.key1;
    }

    public J getSecondKey() {
        return this.key2;
    }

    public int compareTo(DoubleKey<K, J> that) {

        int cmp = this.getFirstKey().compareTo(that.getFirstKey());
        if (cmp == 0)
            cmp = this.getSecondKey().compareTo(that.getSecondKey());
        return cmp;
    }
}

Source: stackoverflow.com

Similar codes

0 vote288 views1 answer
Setter getter array java
Java
0 vote293 views1 answer
Caused by: java.lang.IllegalStateException: stream has already been operated upon or closed
Java
0 vote298 views1 answer
How to check number format exception in java
Java
4 votes283 views3 answers
Java string to uuid
Java
0 vote284 views1 answer
Imageview.setbackground
Java
2 votes317 views1 answer
Springboot starter jpa
Java
0 vote327 views1 answer
Java scanner input float
Java
0 vote298 views1 answer
Eclipse versioning .classpath
Java
6 votes263 views1 answer
Java create a set with values
Java
1 vote281 views1 answer
Exponential in java
Java