public static void main(String[] args) {

    int numPatients = 2;

    int[] age = new int[numPatients];
    String[] gender = new String[numPatients];
    String[] name = new String[numPatients];
    Scanner in = new Scanner(System.in);

    /*
     * Obtaining patients details: name, gender, age
     * First create a Scanner input variable to read the data
     */
    for (int i = 0; i < numPatients; i++)
    {
    System.out.println("Enter name of patient " + (i+1));
     name[i] =  in.nextLine();

    System.out.println("Enter gender (male/female) of patient " + (i+1));
     gender[i] =  in.nextLine();

    System.out.println("Enter age of patient " + (i+1));
     age[i] =  in.nextInt();
    }

Enter name of patient 1
Mark
Enter gender (male/female) of patient 1
Male
Enter age of patient 1
34
Enter name of patient 2 //Skipped. Could not enter input here
Enter gender (male/female) of patient 2
Jenna

age[i] = Integer.parseInt(in.nextLine());

in.next();