Drag and Drop Matching Questions

Accessible from anywhere

Accessible within same package and subclasses

Accessible only within same package

Accessible only within same class

Increment by 1

Modulo (remainder) operator

Logical AND (short-circuit)

Checks if an object is of a certain type

Ternary conditional operator

0

false

0.0d

'\u0000'

0L

Using private fields with public getters/setters

Using extends keyword to derive a class

Method overriding and overloading

Using abstract classes and interfaces

Using fields that reference other objects

Prevents modification: variable constant, method override, class inheritance

Belongs to the class rather than instances

Cannot be instantiated; used for classes and methods

Ensures mutual exclusion in multithreading

Marks field to be ignored during serialization

Ordered collection allowing duplicates

Collection with no duplicates

Collection for holding elements prior to processing

Key-value pairs, keys unique

Double-ended queue supporting insertion/removal at both ends

Executes a block based on a boolean condition

Selects one of many code blocks based on a value

Iterates a fixed number of times

Repeats while a condition is true

Executes at least once then repeats while condition true

Compiles .java source files into .class bytecode

Launches the Java application (JVM)

Generates API documentation from source code comments

Creates and manages JAR archives

Debugger for Java programs

Java Virtual Machine that executes bytecode

Runtime environment including JVM and core libraries

Development kit including JRE and tools like javac

Just-In-Time compiler that optimizes bytecode at runtime

Garbage Collector that automatically manages memory

Runtime exception (unchecked)

Checked exception

Runtime exception (unchecked)

Checked exception

Runtime exception (unchecked)