Question 4.2: Write a program in Java to find the second smallest element in an array.
Input the size of array : 5
Input 5 elements in the array (value must be <9999) :
element - 0 : 0
element - 1 : 9
element - 2 : 4
element - 3 : 6
element - 4 : 5
Expected Output :
The Second smallest element in the array is : 4
Solution:
package lab4problem2;
import java.util.Scanner;
public class Lab4Problem2 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Input the size of array : ");
int size = input.nextInt();
int array[]=new int[size];
int total = 0;
for (int i = 0; i < size; i++) {
System.out.print("element - " + i + " : ");
array[i] = input.nextInt();
total = total * 10 + array[i];
}
if (total < 9999) {
int temp = 0;
for (int i = size; i > 1; i--) {
for (int j = 1; j < size; j++) {
if (array[j - 1] > array[j]) {
temp = array[j - 1];
array[j - 1] = array[j];
array[j] = temp;
}
}
}
System.out.println("The Second smallest element in the array is : " + array[1]);
}
else
System.out.println("Enter valid number!");
}
}
