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Topic: Loops
Codes:
Looping in Java is a fundamental concept that allows you to execute a block of code repeatedly based on a condition. Java provides several types of loops to handle iteration in different scenarios. Here's an overview of the loops available in Java and how to use them effectively:
1. for Loop
The
for loop is used when the number of iterations is known. It has three parts: initialization, condition, and increment/decrement.Example:
2. while Loop
The
while loop is used when the number of iterations is not known beforehand. The loop executes as long as the condition is true.Example:
3. do-while Loop
The
do-while loop is similar to the while loop, but it guarantees at least one iteration since the condition is checked after the execution of the block of code.Example:
4. for-each Loop (Enhanced for Loop)
The
for-each loop is used to iterate through elements in an array or a collection. It is simpler and less error-prone than a traditional for loop when dealing with arrays or collections.Example:
Formatting Tips:
- Indentation: Use consistent indentation (such as 4 spaces or a tab) to denote the structure of your loops clearly.
- Naming Conventions: Use meaningful variable names that reflect the purpose of the variable.
- Spacing: Use spaces around operators (like
<,>,==) for better readability.
- Braces: Follow a consistent brace style (e.g., K&R, Allman) for your loops and conditionals.
By understanding and applying these loops appropriately, you can write efficient and readable Java code that performs repetitive tasks effectively.
Questions:
1.质数判断
2.哥德巴赫猜想
Solutions：
1.质数判断
solution
2.哥德巴赫猜想
solution
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- 作者:现代数学启蒙
- 链接:https://www.math1234567.com/frq01
- 声明:本文采用 CC BY-NC-SA 4.0 许可协议，转载请注明出处。
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