itwanger / itwanger/toBeBetterJavaer
HashMap中左移运算符描述问题
Open
Nobody has claimed this yet.
- Dominant language
- Java
- Stars
- 17.7k
- Forks
- 2.5k
- PR merge metrics
- No merged PRs in 30d
Description
可以补充上,运算数是int 类型时，一共32位，每移动1位它的第31位就要被移出并且丢弃,光用8位的二进制来表示对于初学者来说不易理解
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the HashMap left-shift operator description shown in the attached image and locate the corresponding Java documentation text. Clarify the explanation for int operands using 32-bit representation, including that bits shifted out of the 31st position are discarded. Done means the description is understandable to beginners and no longer relies only on an 8-bit example.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100