Unit 2: Variables and Properties

Front

What is a variable in programming?

Back

A variable is a named storage location in memory that can hold different values during the execution of a program.

Front

How do you change the text of a label in programming?

Back

You can change the text of a label by using the syntax: text.value = 'New Text';

Front

What does it mean to declare a variable?

Back

Declaring a variable means to create a variable and specify its name and type, allowing it to store a value.

Front

What is the purpose of the mouse click event in programming?

Back

The mouse click event allows the program to respond to user interactions, such as drawing shapes or changing properties.

Front

How do you access a property of an object in programming?

Back

You can access a property of an object using the dot notation, e.g., objectName.propertyName.

Front

What is the correct syntax to assign a value to a variable?

Back

The correct syntax is: variableName = value;.

Front

What is an event handler?

Back

An event handler is a function that is called in response to a specific event, such as a mouse click.

Front

How do you change the radius of a circle in programming?

Back

You can change the radius of a circle by using the syntax: circle.radius = newValue;.

Front

What is the difference between a function and a variable?

Back

A function is a block of code that performs a specific task, while a variable is a storage location for data.

Front

What does it mean for a variable to be 'initialized'?

Back

Initializing a variable means assigning it an initial value when it is declared.