pair p1 = new pair(3,4);
pair p2 = new pair(3,4);
pair p3 = new pair(4,4);
System.out.println(p1.equals(p2) + “ ” + p2.equals(p3));

true false

//Java program to implement in-built pair classes
import javafx.util.Pair;
 
class GFG {
    public static void main(String[] args) {
        pair<Integer, String> p = new pair<Integer, String>(10, "Hello Geeks!");
       
        //printing the values of key and value pair separately
        System.out.println("The First value is :" + p.getKey());
        System.out.println("The Second value is :" + p.getValue());
    }
}

/* Java program to find a Pair which has maximum score*/
import java.util.ArrayList;
import javafx.util.Pair;
 
class Test {
    /* This method returns a Pair which hasmaximum score*/
    public static Pair<String, Integer>
    getMaximum(ArrayList<Pair<String, Integer> > l)
    {
        // Assign minimum value initially
        int max = Integer.MIN_VALUE;
 
        // Pair to store the maximum marks of a
        // student with its name
        Pair<String, Integer> ans
            = new Pair<String, Integer>("", 0);
 
        // Using for each loop to iterate array of
        // Pair Objects
        for (Pair<String, Integer> temp : l) {
            // Get the score of Student
            int val = temp.getValue();
 
            // Check if it is greater than the previous
            // maximum marks
            if (val > max) {
                max = val; // update maximum
                ans = temp; // update the Pair
            }
        }
        return ans;
    }
 
    // Driver method to test above method
    public static void main(String[] args)
    {
        int n = 5; // Number of Students
 
        // Create an Array List
        ArrayList<Pair<String, Integer> > l
            = new ArrayList<Pair<String, Integer> >();
 
        /* Create pair of name of student with their
            corresponding score and insert into the
            Arraylist */
        l.add(new Pair<String, Integer>("Student A", 90));
        l.add(new Pair<String, Integer>("Student B", 54));
        l.add(new Pair<String, Integer>("Student C", 99));
        l.add(new Pair<String, Integer>("Student D", 88));
        l.add(new Pair<String, Integer>("Student E", 89));
 
        // get the Pair which has maximum value
        Pair<String, Integer> ans = getMaximum(l);
 
        System.out.println(ans.getKey() + " is top scorer "
                           + "with score of "
                           + ans.getValue());
    }
}

Student C is top scorer with score of 99