How do you print an array backwards?

How do you print an array backwards?

JAVA

1. public class ReverseArray {
2. public static void main(String[] args) {
3. //Initialize array.
4. int [] arr = new int [] {1, 2, 3, 4, 5};
5. System.out.println(“Original array: “);
6. for (int i = 0; i < arr.length; i++) {
7. System.out.print(arr[i] + ” “);
8. }

How do you print an array backwards in C++?

Algorithm to reverse an array

1. First of all take number of elements as input from user. Let it be N.
2. Then ask user to enter N numbers and store it in an array(lets call it inputArray).
3. Declare another array of size equal to input array.
4. Using a for loop, copy elements from inputArray to reverseArray in reverse order.

How do I reverse the contents of an array?

Solution Steps

1. Place the two pointers (let start and end ) at the start and end of the array.
2. Swap arr[start] and arr[end]
3. Increment start and decrement end with 1.
4. If start reached to the value length/2 or start ≥ end , then terminate otherwise repeat from step 2.

How do you print values stored in an array?

In order to print values of the array you can use any of the following 3 examples:

1. Use enhanced for loop or classic for loop with a length of the array.
2. Use Arrays.asList() to convert Array into ArrayList and than print.
3. Use Java 5 Arrays.toString() and Arrays.deepToString() methods.

How will you reverse the array names in JavaScript?

reverse() The reverse() method reverses an array in place. The first array element becomes the last, and the last array element becomes the first.

How do you print in reverse order?

Print Fibonacci Series in reverse order

1. Declare an array of size n.
2. Initialize a[0] and a[1] to 0 and 1 respectively.
3. Run a loop from 2 to n-1 and store. sum of a[i-2] and a[i-1] in a[i].
4. Print the array in the reverse order.

How do you reverse print in C++?

C++ Program to reverse number

1. #include
2. using namespace std;
3. int main()
4. {
5. int n, reverse=0, rem;
6. cout<<“Enter a number: “;
7. cin>>n;
8. while(n!=0)

How do you print a list backwards in C++?

Print a list in reverse order in C++

1. Using std::copy function. An elegant solution is to use std::copy to copy the list’s contents to the output stream (in this case std::cout ) with the help of the output iterator std::ostream_iterator .
2. Using std::for_each function.
3. Using Iterators.
4. Overloading << Operator.

What is reversing an array?

Reverse an Array in C++ The reverse of an array means to change the order of the given array’s elements. This technique reverses the last element of the array into the first one, and the first element becomes the last.

How do you print out an array?

In order to print an integer array, all you need to do is call Arrays. toString(int array) method and pass your integer array to it. This method will take care of the printing content of your integer array, as shown below. If you directly pass int array to System.

How do you reverse words in JavaScript?

JavaScript Algorithm: Reverse Words

1. let reverseWordArr = str.split(” “)
2. . map(word => word. split(“”). reverse(). join(“”));
3. let reverseWordArr = str. split(” “). map(word => word. split(“”). reverse(). join(“”));
4. return reverseWordArr.join(” “);

What do you call an element in an array?

Note: An array is an ordered collection of values. Each value in an array is called an element, and each element has a numeric position in an array, known as its index. Array elements can be accessed by their index using the square bracket notation. An index is a number that represents an element’s position in an array.

Which is the correct index for an array?

An index is a number that represents an element’s position in an array. Array indexes are zero-based. This means that the first item of an array is stored at index 0, not 1, the second item is stored at index 1, and so on. Array indexes start at 0 and go up to the number of elements minus 1.

How do you print an array in Java?

6) The main () function calls the output () function to print the array elements, by passing array a, size of the array as arguments. Then output () function prints the array elements as printf (“%d”,a [i]) using for loop for (i=0;i

What is an array in a C program?

An array is a collection or a sequential order to various elements, with or without a particular order. Arrays usually consist of information that is stored at respective pointers in C programming. As you can see, in this array, the size of the array is defined at first.