## Using the Pythagorean theorem with Java

I’m trying to create this program that essentially solves the 3rd value of a right triangle. So the hypotenuse will always be 1, and one of the values (lets call it ‘x’) will be greater than or equal to -1 but less than or equal to 1. First, I created a loop to include all …

## What does hasNext() in a While do?

I’m new to JAVA and I’m trying to read data from a .txt file. I’ve implemented a Scanner object ‘in’ Scanner in=new Scanner(“file.txt”); and then down the code a while loop to traverse through the content of the file.There are multiple rows of data in the file and in each row there are three strings …

## While else statement equivalent for Java?

The closest Java equivalent is to explicitly keep track of whether you exited the loop with a break… but you don’t actually have a break in your code, so using a while-else was pointless in the first place. For Java folks (and Python folks) who don’t know what Python’s while-else does, an else clause on a while loop executes if the loop ends without …

## Python ‘while’ with two conditions: “and” or “or”

TLDR at bottom. First off, while loops run if the following condition is true, so must return true when simplified, for the while funtion to run The and operator returns true if both conditions are true, so the while loop will only run when it is True and True. So the following won’t run if either of the dice rolled …

## Java Not Greater than Or Equal to Operator for Char Type

So I’m trying to write this in a short way: Basically if the user does not input a letter between A and C, a while loop will run until A,B,C,a,b,c is inputted. It should be in the form of while(letter<‘a’ && letter > ‘c’) but it didn’t work apparently because if I inputted F, is …

## How do I convert this for loop into a while loop?

The general structure of a basic for statement is: ForInit is the initializer. It is run first to set up variables etc. Expression is a boolean condition to check to see if Statement should be run Statement is the block of code to be run if Expression is true ForUpdate is run after the Statement to e.g. update variables as necessary After ForUpdate has been run, Expression is evaluated …

## How to use a Do-while loop that continuously prompts a user?

(I have a homework question that I’ve been stuck on that concerns “do-while loops” in Java. ) It is asking me to have a do-while loop that continues to prompt a user to enter a “number less than 100”, up until the entered number is actually less than 100. (It will run three tests:) Ex: …

## How do I exit a while loop in Java?

Use break: However, if your code looks exactly like you have specified you can use a normal while loop and change the condition to obj != null:

## Printing one character at a time from a string, using the while loop

I’m quite sure, that the internet is full of python while-loops, but one example:

## While loop in batch

This will set countfiles to 0. I think you want to decrease it by 1, so use this instead: I’m not sure if the for loop will work, better try something like this: