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.
Pictorial Presentation:
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:
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Java: Tips of the Day
How to sort an ArrayList?
Collections.sort(testList); Collections.reverse(testList);
That will do what you want. Remember to import Collections though!
Ref: https://bit.ly/32urdSe
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