How to randomly generate an integer in between 1 and 50 (java)

here is the whole code how do I in this create random number so that "numberneedingtobeguessed" is generated randomly.

package Project_Folder;

import java.util.Scanner;

public class Guessing {

    public static void main(String[] args) {
        // TODO Auto-generated method stub

        @SuppressWarnings("resource")
        Scanner input = new Scanner(System.in);
        int number;
        int numberneedingtobeguessed = 26;
        int done = 1;

        System.out.println("I am thinking of a number in between 1 and 50 what is it?");
        while (done < 2) {
            number = input.nextInt();

            if (number < numberneedingtobeguessed) {
                System.out.println("Too low");
            }
            else if (number > numberneedingtobeguessed) {
                System.out.println("Too high");
            }
            else if (number == numberneedingtobeguessed) {
                System.out.println("You guessed correctly");
                done = done + 1;
            }
        }
    }
}