Join Stack Overflow to learn, share knowledge, and build your career. Connect and share knowledge within a single location that is structured and easy to search. In my Java Program, I have used a Boolean variable 'decision' which should execute the actual calculator code in the 'do loop code block' only when the variable is true, but the do while loop is executed anyways even when the decision variable is false. Please help me with a solution.
The code is as below. Either modify your code for while or add an if-else enclosing do You can add another case 5 and in that write System. In the while part pass option! This should run the program. You don't need decision variable. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Execution of do while loop in the Java Calculator program Ask Question. Asked 2 years, 8 months ago.
Active 1 year, 1 month ago. Viewed 5k times. The code is as below import java. Addition" ; System. Subtraction" ; System. Multiplication" ; System. Division" ; System. Ravi Mariya 1, 15 15 silver badges 19 19 bronze badges. Yogi Raj Yogi Raj 71 1 1 silver badge 5 5 bronze badges. Or you simply change to use a pure while loop instead. That is what a do. The body will be executed at least once.
Use a while loop — user7 Jul 4 '18 at Each time the program starts, reset the current value to zero. Your program will respond by performing that operation on the current value and displaying the result.
For an extra challenge not requiredmake sure the program does not try to divide by zero see the example below for what the program should display in that case. Also read this thread. Hey there. I am doing the same program and I have figured out how to get everything to work that is requried, including getting the program to end, when entering Q.
Anyway, here below is the final program:. We're a friendly, industry-focused community of 1. Answered by Ancient Dragon 5, in a post from 12 Years Ago. Jump to Post. Answered by Majestics 84 in a post from 12 Years Ago. Hope this helps and take care. Ancient Dragon commented: bump 3-year-old post, and the info is wrong too!
Java do-while Loop
Salem commented: 3 years too late, no code tags Facebook Like. Twitter Tweet. Be a part of the DaniWeb community. Sign Up — It's Free! This topic is old! No one has contributed to this discussion in over 9 years. Are you sure you have something valuable to add to revive the existing conversation?
Consider starting a new topic instead. Otherwise, please be thoughtful, detailed and courteous, and adhere to our posting rules. Edit Preview.The factorial of n numbers can be denoted as n! In this article, we will create the Factorial Program in Java using the below 4 ways. In the above code, we used a for loop to iterate through the numbers 1 to the given number  and during each iterations product is saved to the factorial variable.
The difference between while loop and do while loop is that, in while loop the condition is checked at the beginning of each iteration and in do while loop the condition is checked at end of each iteration. In the above code, we will be passing the number to the calculateFactorial method, till the number is greater than 1 then the number is multiplied with calculateFactorial recursively where number -1 is passed to it.
Scanner is a class in java. We will be getting the input the from the user for which the factorial needs to be calculated and factorial is calculated using for loop.
All examples and tutorials posted here are very well tested in our development environment.In this tutorial, we will learn how to use while and do while loop in Java with the help of examples. In computer programming, loops are used to repeat a block of code. For example, if you want to show a message times, then you can use a loop. It's just a simple example; you can achieve much more with loops.
In the previous tutorial, you learned about Java for loop. Here, you are going to learn about while and do Java while loop is used to run a specific code until a certain condition is met.
The syntax of the while loop is:. To learn more about the conditions, visit Java relational and logical operators. In the above program, we have used the Scanner class to take input from the user. Here, nextInt takes integer input from the user. The while loop continues until the user enters a negative number. During each iteration, the number entered by the user is added to the sum variable.
When the user enters a negative number, the loop terminates. Finally, the total sum is displayed. The do However, the body of do For example.
Let's see the working of do Here, the user enters a positive number, that number is added to the sum variable. And this process continues until the number is negative.Join Stack Overflow to learn, share knowledge, and build your career. Connect and share knowledge within a single location that is structured and easy to search. Write a simple calculator program that prints a welcome message, accepts a simple arithmetic expression from the user, and performs the requested operation.
Your program should repeat this until both operands are 0 and then exit. It's running fine but I'm not sure how to get a handle on the While Loop so that the calculator will continue until the answer is 0. Sorry if this is a really basic question.
Any help would be appreciated. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Asked 6 years, 6 months ago. Active 6 years, 6 months ago. Viewed 11k times. Add a comment.
Java while and do...while Loop
Active Oldest Votes. Abhishek Chawla Abhishek Chawla 46 6 6 bronze badges. To solve the problem you mentioned above. Tangoo Tangoo 3 3 gold badges 11 11 silver badges 29 29 bronze badges. The Overflow Blog. Podcast Getting Dev and Ops to actually work together.Sacramento ranks 15th in second chance points allowed per game (12.
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