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Java Programming Exercies

Java Array Exercises: Find the second smallest element in an array

Java Array: Exercise-18 with Solution

Write a Java program to find the second smallest element in an array.

Sample Solution:

Java Code :

import java.util.Arrays;
public class Exercise18 {
  public static void main(String[] args) {

    int[] my_array = {-1, 4, 0, 2, 7, -3};
    System.out.println("Original numeric array : "+Arrays.toString(my_array));
    int min = Integer.MAX_VALUE;
    int second_min = Integer.MAX_VALUE;
    for (int i = 0; i < my_array.length; i++) {
        if(my_array[i]==min){
          second_min=min;
        } else if (my_array[i] < min) {
            second_min = min;
            min = my_array[i];
        } else if (my_array[i] < second_min) {
            second_min = my_array[i];
        }

    }
    System.out.println("Second lowest number is : " + second_min);
    }
}
 

Sample Output:

Original numeric array : [-1, 4, 0, 2, 7, -3]                                                                 
Second lowest number is : -1 

Flowchart:

Flowchart: Java exercises: Find the second smallest element in an array

Java Code Editor:

import java.util.Arrays;
public class Exercise18 {
  public static void main(String[] args) {

    int[] my_array = {-1, 4, 0, 2, 7, -3};
    System.out.println("Original numeric array : "+Arrays.toString(my_array));
    int min = Integer.MAX_VALUE;
    int second_min = Integer.MAX_VALUE;
    for (int i = 0; i < my_array.length; i++) {
        if(my_array[i]==min){
          second_min=min;
        } else if (my_array[i] < min) {
            second_min = min;
            min = my_array[i];
        } else if (my_array[i] < second_min) {
            second_min = my_array[i];
        }

    }
    System.out.println("Second lowest number is : " + second_min);
    }
}

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