Java program to print Fibonacci sequence using array

This java program will print fibonacci sequence up to given number.

if input is 5 then the program print 0 1 1 2 3

<pre>import java.io.BufferedReader;
import java.io.InputStreamReader;

/**
 * java program to print fibonacci sequence
 * Created by Sani Kamal on 05-May-17.
 */
public class FibonacciSequence {
    public static void main(String[] args) {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        try {
            System.out.println("Enter the number of item to be printed: :");
            int num = Integer.parseInt(br.readLine());
            num = num > 2 ? num : 2;
            int[] fibArray = new int[num];
            fibArray[0] = 0;
            fibArray[1] = 1;
            for (int i = 2; i < num; i++) {
                fibArray[i] = fibArray[i - 1] + fibArray[i - 2];

            }
            System.out.println("Fibonacci Sequence..");
            for (int i = 0; i < num; i++) {
                System.out.print(fibArray[i]+" ");

            }


        } catch (Exception e) {
            System.out.println(e.getMessage());
            e.printStackTrace();
        }
    }
}</pre>

Java program to find 2nd largest and 2nd smallest number in a given array

<pre>import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Arrays;

/**
 * java program to find the largest,2nd largest,smallest and
 * 2nd smallest numbers in a given array
 * Created by Sani Kamal on 05-May-17.
 */
public class FindLargest {
    public static void main(String[] args) {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        try {
            System.out.println("Enter size of array:");
            int num = Integer.parseInt(br.readLine());
            int[] numbers = new int[num];
            for (int i = 0; i < num; i++) {
                numbers[i] = (int) (Math.random() * 125);

            }
            //print all the numbers in  array
            System.out.println("Array Elements:");
            for (int i = 0; i < num; i++) {
                System.out.print(numbers[i] + " ");
            }
            System.out.println();
            //sort array
            Arrays.sort(numbers);
            System.out.println("Sorted array:");
            for (int number : numbers) {
                System.out.print(number + " ");
            }
            System.out.println();
            System.out.println("Largest element in array:" + numbers[num- 1]);
            System.out.println("2nd largest element in array:" + numbers[num - 2]);
            System.out.println("smallest element in array:" + numbers[0]);
            System.out.println("2nd smallest element in array:" + numbers[1]);

        } catch (Exception e) {
            System.out.println(e.getMessage());
            e.printStackTrace();
        }
    }
}</pre>