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Java Certification & Interview Prep
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Module 1
OCP Exam Essentials & Core Types
1
Understanding the OCP Java SE 17 Developer Exam (1Z0-829)
Describe the structure, scoring, topic weighting, and question style of the OCP Java SE 17 Developer 1Z0-829 exam.
2
Primitive Types vs. Wrapper Classes & Numeric Literals
Distinguish between primitive types, their wrapper classes, and identify illegal numeric literal patterns (binary, hex, underscores).
3
Numeric Type Conversion: Promotion, Casting, and Overflow
Predict the results of numeric promotion and explicit casting, including overflow behavior for byte, short, int, and long.
4
Understanding `var`: Type Inference and Restrictions
Apply 'var' for local variable type inference and identify contexts where its use is illegal (fields, method parameters, uninitialized variables).
Text Blocks: Whitespace, Line Terminators, and Escapes
Analyze text block behavior with respect to incidental whitespace stripping, line terminators, and escape sequences.
String, StringBuilder, and the String Pool: == vs. equals()
Differentiate the behavior of String, StringBuilder, and the String pool by predicting the outcome of == versus equals() comparisons.
String Manipulation with Key API Methods
Manipulate strings using key API methods such as indexOf, substring, strip, stripIndent, translateEscapes, and formatted.
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