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@thmain
Last active Feb 26, 2018
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import javafx.util.Pair;
import java.util.ArrayList;
public class PairExample {
public static void main(String[] args) {
Pair<String, Integer> pair1 = new Pair<>("apple",1);
Pair<String, Integer> pair2 = new Pair<>("apple",1);
Pair<String, Integer> pair3 = new Pair<>("banana",2);
Pair<String, Integer> pair4 = new Pair<>("pineapple",4);
ArrayList<Pair<String,Integer>> list = new ArrayList<>();
list.add(pair1);
list.add(pair2);
list.add(pair3);
list.add(pair4);
//toString function
System.out.println("--------toString function--------");
for(Pair p: list){
System.out.println(p.toString());
}
//equals function
System.out.println("--------equals function--------");
System.out.println("pair1 and pair2 are equal: " + pair1.equals(pair2));
System.out.println("pair1 and pair3 are equal: " + pair1.equals(pair3));
System.out.println("pair3 and pair4 are equal: " + pair3.equals(pair4));
//getKey and getValue function
System.out.println("--------getKey and getValue function--------");
for (Pair p: list){
System.out.println("key: " + p.getKey() + " and its value: " + p.getValue());
}
//hashCode function
System.out.println("--------hashCode function--------");
for (Pair p: list){
System.out.println("Pair: " + p.toString() + " and hashCode: " + p.hashCode());
}
System.out.println(" As you can see that hashcode for pair1 and pair2" +
" are same since key and values are equal");
}
}
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