Java Errors: Java13 Preview Errors, How to Handle and Avoid

When writing Java programs, you often encounter various errors and exceptions. Among them, Java13 preview error is a common problem. This error is mainly because some new functions and features were introduced in the Java13 version, but incorrect syntax or unsupported APIs were used in some codes, resulting in compilation or runtime errors. Next, this article will explore the common causes, processing methods, and avoidance measures of Java13 preview errors.

1. Reasons for Java13 preview errors

The Java13 version has introduced a number of improvements and new features, such as enhanced functions of Switch statements, added text blocks, enhanced Lambda expressions, etc. . However, because Java 13 is a preview version, some new features may not be stable enough or may be removed or changed in subsequent versions. This may lead to Java 13 preview errors when using these new features.

In addition, some programmers may use unsupported APIs or incorrect syntax, which may also cause Java13 preview errors. For example, when using a Switch statement, you need to pay attention to adding a break statement in each case; when using a text block, you need to pay attention to the indentation; when using a Lambda expression, you need to pay attention to adding an arrow symbol between the parameter list and the function body. wait.

2. How to deal with Java13 preview errors

For Java13 preview errors, you can generally use the following methods to deal with them:

1. Learn and master new features. Learn what new features have been added to the Java 13 version, what features have been improved, how to use the new features, etc. This way you can avoid Java13 preview errors caused by not understanding new features.

2. Upgrade IDE and JDK. The IDE and JDK also need to be upgraded to the latest version to better support the Java13 version. For example, you can use the latest version of IntelliJ IDEA or Eclipse, as well as the latest version of JDK, etc.

3. Use appropriate syntax and API. When writing Java13 programs, you need to use correct syntax and APIs to avoid Java13 preview errors caused by using unsupported APIs or incorrect syntax.

4. Find and resolve errors. If a Java 13 preview error occurs, you need to read the error message carefully and find and solve the problem according to the error message. Some common errors and solutions can be found in the official Java documentation or community forums.

3. Measures to avoid Java13 preview errors

In order to avoid the occurrence of Java13 preview errors, you can take the following measures:

1. Choose the appropriate Java version according to your needs . If you do not need the new features in the Java13 version, you can choose a more stable Java version, such as Java11 or Java12. This avoids Java 13 preview errors caused by unstable new features.

2. Use editors and plug-ins to detect errors. When writing code, you can use common editors such as IntelliJ IDEA and Eclipse, and use corresponding plug-ins to detect errors. For example, the Inspection function in IntelliJ IDEA can detect errors and potential problems in the code, helping developers find and solve problems.

3. Use appropriate tools and libraries when writing code. Some common tools and libraries can help developers avoid Java13 preview errors. For example, Lombok can simplify code, Apache Commons can provide commonly used APIs, etc. These tools and libraries can greatly improve development efficiency and also avoid Java13 preview errors.

To sum up, Java13 preview error is a common problem, which requires developers to carefully review the code, learn and master new features, upgrade IDE and JDK and other measures when writing Java programs to avoid or deal with it. Java13 preview error appears.

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