Print Numbers from 1 to N without using loop

If you want to practice data structure and algorithm programs, you can go through Java coding interview questions.

In this post, we will see how to print numbers from 1 to N without using loop.

Problem

Print number from 1 to N without using any loop.

N=10
Output: 1 2 3 4 5 6 7 8 9 10

Using Recursion

We can use tail recursion to solve this problem.

• Base case
• When n <= 0, return
• call printNumbers recursively with n-1
• Print number while returning from recursion.

Output

1 2 3 4 5 6 7 8 9 10

That’s all about how to print Numbers from 1 to N without using loop.

Related Posts

• 18 June

Maximum Number of Vowels in a Substring of Given Length

Table of ContentsApproach – 1 Generate All Substrings Using substring() MethodApproach – 2 Using Sliding Window Method (Linear Time Solution) In this article, we will look at an interesting problem related to the Strings and [Sliding-Window Algorithm](https://java2blog.com/sliding-window-maximum-java/ “Sliding-Window Algorithm”). The problem is : "Given a String we have to Find the Maximum Number of Vowel […]

• 04 June

Search for a range Leetcode – Find first and last position of element in sorted array

Table of ContentsApproach 1 (Using Linear Search)Approach 2 (Using Modified Binary Search-Optimal) In this article, we will look into an interesting problem asked in Coding Interviews related to Searching Algorithms. The problem is: Given a Sorted Array, we need to find the first and last position of an element in Sorted array. This problem is […]

• 30 April

Convert Postfix to Infix in Java

Learn about how to convert Postfix to Infix in java.

• 30 April

Convert Prefix to Postfix in Java

Learn about how to convert Prefix to Postfix in java.

• 16 April