While Loop

Part of the Fundamentals section of Coddy's Java journey. Lesson 43 of 73.

A while loop is different from the for loop. A for loop has initialization, condition and update parts in its header, so it suits counting through a known range of values. A while loop has only a condition and keeps iterating as long as that condition is met.

To use a while loop write:

while (condition) {
	code
}

The code will execute only if the condition is true.

A for loop can do the same work, but a while loop is clearer when you do not know in advance how many times the code should repeat, such as reading input until the user types "quit".

Challenge

Beginner

Write a program that gets one input, double number.

Use a while loop to divide the input by 2 as long as the number is bigger or equal to 3.5.

Print the first number that is smaller than 3.5.

Try it yourself

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        // Write your code below
        
        scanner.close();
    }
}