Get and set accessors in C Sharp (C#) - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of a get accessor in C# properties?

The get accessor is used to read or retrieve the value of a property. It allows external code to access the property's value safely.

beginner

What does the set accessor do in a C# property?

The set accessor allows you to assign or change the value of a property. It usually takes an implicit parameter called value representing the new value.

intermediate

Explain how to create a read-only property using get and set accessors.

To create a read-only property, define only the get accessor without a set. This means the property value can be read but not changed from outside the class.

beginner

What is the implicit parameter inside a set accessor called, and what is its role?

The implicit parameter inside a set accessor is called value. It holds the value that is being assigned to the property.

beginner

Show a simple example of a C# property with both get and set accessors.

Example:

private int age;
public int Age {
  get { return age; }
  set { age = value; }
}

This property allows reading and writing the age field.

What happens if you omit the set accessor in a property?

A The property cannot be accessed at all.

B The property becomes read-only.

C The property becomes write-only.

D The property throws an error.

Without a set, the property can only be read, making it read-only.

Inside a set accessor, what keyword represents the value being assigned?

A this

B newValue

C set

D value

The keyword value holds the new value assigned to the property.

Which accessor is required to read a property value?

A init

B set

C get

D delete

The get accessor allows reading the property's value.

How do you make a property write-only?

A Include only the <code>set</code> accessor.

B Include only the <code>get</code> accessor.

C Include both <code>get</code> and <code>set</code> accessors.

D Use a private field without accessors.

A property with only a set accessor can be assigned but not read.

What is the default accessibility of get and set accessors if not specified?

A They inherit the property's accessibility.

B They are always public.

C They are always private.

D They cause a compilation error.

Accessors inherit the accessibility level of the property unless explicitly changed.

Describe how get and set accessors work together in a C# property.

Think about how you read and write values safely.

Explain how to create a read-only property and why you might want to do that.

Consider when you want to share data but keep it safe.