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Simplify Java Code with Lombok’s @Builder
Writing clean, maintainable Java code often comes down to reducing boilerplate and improving readability. One common struggle developers encounter is constructing complex objects — especially those with many optional parameters. This is where Lombok’s @Builder annotation shines. In this post, … Continue reading
Enumerations in Java
Java supports enumeration types (in short enum) since Java 5. Enumeration is used to define a list of constants which can be later referenced in source code by its name. Enumeration type in Java is based on concept of the … Continue reading
Unexpected NullPointerException (NPE) in ternary conditional operator in Java
Sometimes I come across Java code that unexpectedly throws NullPointerException in ternary operator. It is especially surprising if this particular line of code seems very simple like: or even: At first, it might look like the condition is not met … Continue reading
Delete directory with contents in Java
Removing empty directory in Java is as simple as calling File.delete() (standard IO) or Files.delete() (NIO) method. However, if the folder is not empty (for example contains one or more files or subdirectories), these methods will refuse to remove it. … Continue reading
How to delete file in Java
File management (good old CRUD: create, read, update, delete) is quite common operation in software development. In this short post I would like to present 2 ways of removing files in Java. Method available in every Java version Every Java … Continue reading
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