Java Exercises: Rotate an array of integers in left direction
Java Basic: Exercise-79 with Solution
Write a Java program to rotate an array (length 3) of integers in left direction.
Test Data: {20, 30, 40}
Expected output: {30, 40, 20}
Sample Solution:
Java Code:
import java.util.Arrays;
public class Exercise79 {
public static void main(String[] args)
{
int[] array_nums = {20, 30, 40};
System.out.println("Original Array: "+Arrays.toString(array_nums));
int[] new_array_nums = {array_nums[1], array_nums[2], array_nums[0]};
System.out.println("Rotated Array: "+Arrays.toString(new_array_nums));
}
}
Sample Output:
Original Array: [20, 30, 40] Rotated Array: [30, 40, 20]
Pictorial Presentation:
Flowchart:
Java Code Editor:
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Previous: Write a Java program to test that a given array of integers of length 2 contains a 4 or a 7.
Next: Write a Java program to get the larger value between first and last element of an array (length 3) of integers.
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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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