What methods can increase the reliability of a Java program?

To improve the reliability of a Java program, the following methods can be used:

• Exception handling: properly use try-catch-finally to prevent failures.
• Input validation: check the correctness of data before processing.
• Use immutable objects where possible to avoid unforeseen changes.
• Logging: keep a record of errors and important events for diagnostics.
• Unit testing and integration testing to identify errors early.
• Use annotations, such as @Nullable and @NotNull, to avoid null errors.
• Use static code analysis tools to detect potential issues.
• Follow principles of clean code and design patterns to improve maintainability and extensibility.

Example of exception handling:

try {
    int result = 10 / divisor;
} catch (ArithmeticException e) {
    System.out.println("Division by zero is not possible");
}