Module 01 · Handling Values

Module 00 covered the primitive building blocks. This module is about working with values through Java's everyday APIs: text (String, text blocks, StringBuilder), numbers (wrappers, Math, BigDecimal), booleans, and the java.time Date-Time API. This is exam objective group 1 — broad, and full of the small behavioral traps the exam loves.

Lessons

#	Lesson	What it covers
01	Text — Strings & Text Blocks	Immutability, the string pool, == vs equals, key methods, concatenation vs StringBuilder, text blocks.
02	Numeric Values	Wrapper classes, autoboxing & the Integer cache, parsing/formatting, Math, division/modulo/overflow, BigInteger/BigDecimal.
03	Boolean & Conditions	boolean vs Boolean, logical vs bitwise, short-circuiting, the ternary operator, truthiness traps.
04	Dates & Times	LocalDate/LocalTime/LocalDateTime, Instant, Period/Duration, immutability, DateTimeFormatter.

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• L01 — Text: Strings & Text Blocks
• L02 — Numeric Values
• L03 — Boolean & Conditions
• L04 — Dates & Times

Module Mini-Exam

A timed, mixed quiz covering the whole module under light exam pressure. Aim well above the real exam's 68% pass bar before moving on.

Mini-Exam

• 10 questions
• 20 minutes
• 12 total points
• Pass: 9 pts (68%)