What is the name of the variable which only stores two different values?

• Integer
• String
• Double
• Boolean

Is the following method an accessor method or a mutator method?
public void setValue (int x){
  value = value + x;
}

• This is an accessor method
• This is a mutator method

Is the following method an accessor method or a mutator method?
public String returnValue(){
  return theName;
}

• This is an accessor method
• This is a mutator method

What is this?

• A Binary Tree
• An Array
• A Linked List
• An integer

Post order traversal

• f, b, a, d, c, e, g, i, h
• a, b, c, d, e, d, h, i, g, f
• a, c, e, d, b , h, i, g, f
• ha ha ha ha ha

What are the features of an abstract data structure?

• fixed size, primitive data types,
• associated methods, no set size, user defined data types
• an array, a linked list and stack are these

Which of the following are primitive data types?

• int, double, boolean, short, long
• array, string, linked list
• string, double, int, boolean
• string, date, int, dog

This is a:

• Linked list
• Stack
• 2D array
• an array

What is the difference between a stack and queue?

• You push, pop and queue and it is fifo, a stack is lifo
• You enqueue, dequeue a queue and it is lifo a stack is fifo
• you push, pop a stack it is lifo and a queue is fifo
• you enqueue and dequeue a stack and it is fifo

What data type is this 'C'?

• String
• Char
• int
• boolean