Java 与 Scala 对比:30项指标
Java 对比 Scala
Java
Java 是一种Object-Oriented, Functional编程语言,首次出现于 1995 年,由 James Gosling 设计。主要应用场景:Backend Services, Enterprise Applications, Android。
Scala
Scala 是一种Object-Oriented, Functional编程语言,首次出现于 2004 年,由 Martin Odersky 设计。主要应用场景:Backend Services, Enterprise Applications, Android。
30项指标
| 指标 | Java | Scala |
|---|---|---|
| GitHub Stars | 67614 | 55399 |
| Stack Overflow Tags | 836938 | 668243 |
| TIOBE Rank | 4 | 49 |
| RedMonk Rank | 2 | 51 |
| PYPL Rank | 19 | 56 |
| Average Salary (USD) | 126537 | 108106 |
| Job Postings | 41128 | 32694 |
| Benchmarks Score | 0.91 | 0.77 |
| Learning Curve | Hard | Hard |
| Community Size | Very Large | Large |
| Documentation Quality | 8 | 9 |
| Ecosystem Maturity | 9 | 9 |
| Industry Adoption | 9 | 9 |
| Type System Complexity | 9 | 7 |
| Concurrency Support | 10 | 4 |
| Performance - Execution Speed | 10 | 6 |
| Performance - Memory Usage | 10 | 5 |
| Performance - Startup Time | 10 | 6 |
| Tooling Quality | 10 | 9 |
| Package Manager Quality | 9 | 9 |
| IDE Support | 9 | 9 |
| Debugging Experience | 10 | 9 |
| GitHub Stars Rank | 2 | 25 |
| Stack Overflow Tags Rank | 10 | 32 |
| Average Salary Rank | 15 | 41 |
| Job Postings Rank | 12 | 35 |
| Benchmarks Rank | 14 | 36 |
| Learning Curve Score | 3 | 4 |
| Community Size Score | 10 | 8 |
| AHP Score | 8.41 | 7.17 |
AHP综合评分
- Java: 8.41 (#5)
- Scala: 7.17 (#30)
Java | ######## 8.41
Scala | ####### 7.17
何时选择Java
Backend Services, Enterprise Applications, Android. Java 是一种Object-Oriented, Functional编程语言,首次出现于 1995 年,由 James Gosling 设计。主要应用场景:Backend Services, Enterprise Applications, Android。
何时选择Scala
Backend Services, Enterprise Applications, Android. Scala 是一种Object-Oriented, Functional编程语言,首次出现于 2004 年,由 Martin Odersky 设计。主要应用场景:Backend Services, Enterprise Applications, Android。
Hello World 示例
Java:
public class Main { public static void main(String[] a){ System.out.println("Hello, World!"); } }
Scala:
object Main extends App { println("Hello, World!") }