Answer: False.
Answer analysis: Java is popular not just because it is a language used to develop iOS mobile applications. This statement is a misunderstanding, and the following is a detailed analysis:
Reasons for Java's popularity
1. Cross-platform: Java is a cross-platform programming language, which means that programs written in Java can run on different operating systems and devices, including Android, iOS (although not directly supported, it can be indirectly implemented through specific tools), Windows, etc. This feature greatly reduces development costs and improves program portability, which is one of the important reasons why Java is so popular.
2. Strong security: Java's security is provided by its virtual machine (JVM). JVM can perform security checks on code when running Java applications, thereby protecting applications from malicious code attacks. This security makes Java an ideal choice for developing applications with high security requirements.
3. Rich development tools and frameworks: Java has a wealth of development tools and frameworks, such as Android Studio, Eclipse, Spring, Hibernate, etc. These tools and frameworks can greatly improve development efficiency and application quality. Especially for Android application development, IDEs such as Android Studio provide strong support and rich resources.
4. Large development community: Java has a large development community, which provides a large number of development documents, tutorials, forums and other resources, allowing Java learners and developers to easily get help and share experiences. This community support is also one of the important factors for Java's popularity.
5. Scalability and maintainability: As a statically typed language, Java has a faster maintenance speed and better maintainability. At the same time, Java also has good backward compatibility, and old versions of Java programs can continue to run in the new version environment, which provides a strong guarantee for the long-term use of Java.
Java and iOS application development
Although Java itself cannot be used directly to develop iOS applications (iOS applications usually use Objective-C or Swift language and Xcode development environment), some specific tools, frameworks and virtual machines (such as RoboVM) can be used to implement Java code on the iOS platform. However, this is not the main reason for Java's popularity. In fact, Java's popularity in the field of mobile application development is mainly due to its wide application and excellent performance on the Android platform.
To sum up, Java is popular because of its cross-platform nature, strong security, rich development tools and frameworks, large development community, good scalability and maintainability, and not just because it is the language used to develop iOS mobile applications.