search
HomeJavajavaTutorialHow to use while statement in java

The while loop in Java is a loop statement that continuously executes a block of statements until a condition is false. Specific execution process: 1. Check whether the condition is true. 2. If true, execute the statement block. 3. If false, break out of the loop. 4. Regardless of whether the statement block is executed or not, the condition is checked again. 5. Repeat this process until the condition is false.

How to use while statement in java

While loop statement in Java

Usage of while statement

## The

#while statement is a loop statement that continues to execute its block of statements until its condition is false. The syntax is as follows:

while (condition) {
    // 语句块
}

where:

  • condition is a Boolean expression that determines whether the loop continues execution. If the condition is true, the block of statements will execute.
  • Statement block is the code block to be executed inside the while loop.

The execution process of while loop

    Check conditions. If the condition is true, the block of statements is executed.
  1. If the condition is false, break out of the loop.
  2. Regardless of whether the statement block is executed or not, the condition will be checked again. The process repeats until the condition is false.

Application scenarios of while loop

when loop is usually used in situations where an operation needs to be repeatedly performed, for example:

    Traverse an array or collection
  • Continuously read user input
  • Repeatedly try an operation until a condition is met

Example

The following code uses a while loop to traverse an array and print each element:

int[] numbers = {1, 2, 3, 4, 5};
int i = 0;
while (i < numbers.length) {
    System.out.println(numbers[i]);
    i++;
}

Output:

<code>1
2
3
4
5</code>

The above is the detailed content of How to use while statement in java. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
How do I use Maven or Gradle for advanced Java project management, build automation, and dependency resolution?How do I use Maven or Gradle for advanced Java project management, build automation, and dependency resolution?Mar 17, 2025 pm 05:46 PM

The article discusses using Maven and Gradle for Java project management, build automation, and dependency resolution, comparing their approaches and optimization strategies.

How do I create and use custom Java libraries (JAR files) with proper versioning and dependency management?How do I create and use custom Java libraries (JAR files) with proper versioning and dependency management?Mar 17, 2025 pm 05:45 PM

The article discusses creating and using custom Java libraries (JAR files) with proper versioning and dependency management, using tools like Maven and Gradle.

How do I implement multi-level caching in Java applications using libraries like Caffeine or Guava Cache?How do I implement multi-level caching in Java applications using libraries like Caffeine or Guava Cache?Mar 17, 2025 pm 05:44 PM

The article discusses implementing multi-level caching in Java using Caffeine and Guava Cache to enhance application performance. It covers setup, integration, and performance benefits, along with configuration and eviction policy management best pra

How can I use JPA (Java Persistence API) for object-relational mapping with advanced features like caching and lazy loading?How can I use JPA (Java Persistence API) for object-relational mapping with advanced features like caching and lazy loading?Mar 17, 2025 pm 05:43 PM

The article discusses using JPA for object-relational mapping with advanced features like caching and lazy loading. It covers setup, entity mapping, and best practices for optimizing performance while highlighting potential pitfalls.[159 characters]

How does Java's classloading mechanism work, including different classloaders and their delegation models?How does Java's classloading mechanism work, including different classloaders and their delegation models?Mar 17, 2025 pm 05:35 PM

Java's classloading involves loading, linking, and initializing classes using a hierarchical system with Bootstrap, Extension, and Application classloaders. The parent delegation model ensures core classes are loaded first, affecting custom class loa

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Chat Commands and How to Use Them
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools