Asked by: Jaymie Sieberkropp
technology and computing programming languages

What is while true in Java?

24
The Java while loop is similar to the for loop. The while loop enables your Java program to repeat a set of operations while a certain conditions is true. The Java while loop exist in two variations. The commonly used while loop and the less often do while version.


People also ask, what does true mean in Java?

A Boolean value is one with two choices: true or false, yes or no, 1 or 0. In Java, there is a variable type for Boolean values: boolean user = true; So instead of typing int or double or string, you just type boolean (with a lower case "b").

Also, what is the use of while loop in Java? Loops in Java come into use when we need to repeatedly execute a block of statements. Java while loop is a control flow statement that allows code to be executed repeatedly based on a given Boolean condition. The while loop can be thought of as a repeating if statement.

Similarly one may ask, is while true bad practice?

It is not a bad practice, it just means that you did not think your code through. The condition is required to tell the loop when to finish looping. Both methods are correct, but if someone else is reading your code, it is much easier to see when the loop will stop iterating if it is right there in the condition.

How do you use while true?

The while statement takes an expression and executes the loop body while the expression evaluates to (boolean) "true". True always evaluates to boolean "true" and thus executes the loop body indefinitely. It's an idiom that you'll just get used to eventually!

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Is 0 true or false in Java?

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Should I use while true?

People say it is bad practice to use while (true) , and a lot of the time they are right. If your while statement contains lots of complicated code and it is unclear when you are breaking out of if, then you are left with difficult to maintain code and a simple bug could cause an infinite loop.

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How do you make an infinite loop in C++?

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What is do while infinite loop in C?

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How do you break a true loop?

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  2. break is not defined outside a for or while loop. To exit a function, use return .

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What does while 1 mean in Python?

In most computer programming languages, a while loop is a control flow statement that allows code to be executed repeatedly based on a given boolean condition. The boolean condition is either true or false. while(1) It is an infinite loop which will run till a break statement is issued explicitly.

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How do you break out of a loop in Python?

In Python, the break statement provides you with the opportunity to exit out of a loop when an external condition is triggered. You'll put the break statement within the block of code under your loop statement, usually after a conditional if statement. In this small program, the variable number is initialized at 0.

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Do loops syntax Java?

Java do-while loop is used to execute a block of statements continuously until the given condition is true. The do-while loop in Java is similar to while loop except that the condition is checked after the statements are executed, so do while loop guarantees the loop execution at least once.

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What is a for loop in Java?

The Java for loop is a control flow statement that iterates a part of the programs multiple times. The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.

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What is the symbol for or in Java?

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How do you create a loop in Java?

The for-loop follows four steps:
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How do you make an infinite loop in Java?

Write an infinite loop program using while and for loop in Java :
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  2. 'while' loop first checks a condition and then runs the code inside its block.
  3. It will print the line continuously for infinite time.
  4. We can also use a 'for' loop to write one infinite loop like below :

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Is return allowed in a loop?

The return statement is illegal because the loop itself is not within a function declaration. If you wrap the for loop with a function, it'll return a value. If you have a function, return statements are allowed.

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EveryThingWhat Staff Editor

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11th January, 2020

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