WEEK 1 - Java Fundamentals

What is Java?

A programming language used to create applications.

What is programming?

Writing instructions that a computer executes

What is source code?

Human-readable instructions written in a programming language.

What is a compiler?

Software that translates source code into another form.

What is bytecode?

Java's compiled instructions executed by the JVM.

What is the JVM?

Java Virtual Machine; executes Java bytecode.

What is the JDK?

Java Development Kit; tools for developing Java programs.

What is an IDE?

Software used to write, run, and debug code.

What is IntelliJ IDEA?

An IDE used to develop Java programs.

What is a class?

A blueprint defining an object's data and behavior.

What is an object?

An instance of a class.

What is a variable?

A named location that stores a value.

What is a data type?

Specifies what kind of value a variable can hold.

What is int?

A primitive type for whole numbers.

What is double?

A primitive type for decimal numbers.

What is boolean?

A primitive type holding true or false.

What is char?

A primitive type for a single character.

What is String?

A class representing a sequence of characters.

What is a statement?

An instruction executed by a program.

What is an expression?

Code that evaluates to a value.

What is an operator?

A symbol that performs an operation.

What is assignment (=)?

Stores a value in a variable.

What is equality (==)?

Compares primitive values or object references.

What is a condition?

An expression evaluated as true or false.

What is an if statement?

Executes code when a condition is true.

What is else?

Runs when the preceding if condition is false.

What is a loop?

Repeats instructions while conditions allow.

What is a while loop?

Repeats while its condition remains true.

What is a for loop?

A loop commonly used with a counter.

What is a method?

A named block of code that performs a task.

What is a parameter?

A variable declared in a method's parameter list.

What is an argument?

A value supplied when calling a method.

What is return?

Ends a method and optionally returns a value.

What is void?

Indicates that a method returns no value.

What is static?

Belongs to the class rather than an instance.

What is public?

Allows access from other classes.

What is private?

Restricts access to the declaring class.

What is main()?

The usual entry point for a Java application.

What is Scanner?

A class used to read and parse input.

What is a comment?

Text explaining code that Java ignores during execution.

What is a syntax error?

Code that violates Java's language rules.

What is a runtime error?

A problem occurring while a program executes.

What is a logic error?

Code runs but produces incorrect behavior or results.

What is debugging?

Finding and fixing problems in a program.