Relational and Logical Operators in Java
Learn Java relational and logical operators: comparison operators, equality checks, and how to combine boolean expressions with AND, OR, and NOT operators.
Posts tagged with #java-fundamentals
Static Methods
Class-level methods that belong to the type itself, not instances — when to use them, utility patterns, and common pitfalls.
java.util.stream.Stream
Master Java streams: filter, map, reduce, collect, and parallel execution for expressive functional-style operations on collections.
The String Class
Master Java's String class: immutability, concatenation, interning, and key methods like substring, split, and format for text processing.
Switch Expressions in Java
Master Java switch expressions: using switch as an expression that returns values, pattern matching in Java 14+, and modernizing switch statement syntax.
Ternary Operator in Java
Learn the Java ternary operator: condition ? valueIfTrue : valueIfFalse for concise branching, when to use it, and common pitfalls to avoid in code readability.
java.text Formatting
Format strings, numbers, dates, and messages with java.text: MessageFormat, NumberFormat, DecimalFormat, and printf-style formatting.
Throw and Throws: Raising and Declaring Exceptions in Java
Learn the difference between throw and throws in Java: raising exceptions vs declaring them in method signatures for checked exception propagation.
Throwable Hierarchy: Error vs Exception in Java
Understand Java's Throwable hierarchy, the distinction between Error and Exception, and when each category should be handled differently.
java.time (Date and Time API)
Master Java's modern date-time API: LocalDate, LocalDateTime, Instant, Duration, Period, and ZonedDateTime for robust time handling.