value vs reference

Question 1

Value types - Allocation

Answer 1

• Allocated on the stack
• When you declare a value type variable, data is stored directly in memory where the variable is created

Question 2

Value types - Passing to methods

Answer 2

• Passes copy of data
• Changes to value within the method does not affect original variable

Question 3

Reference Types - Allocation

Answer 3

• Allocated on the heap
• When you declare a reference type variable, a reference (memory address) to the actual data is stored on the heap

Question 4

Reference Types - Passing to methods

Answer 4

• Passes reference address
• Changes to variable will change the original value because it references the same memory location in the method