OOP - Week 2 Flashcards
1
Q
What is changing to a bigger or smaller type called
A
Widening/Narrowing
2
Q
How to type cast
A
Write (typename) infront of the variable name
3
Q
What is an array
A
A container that holds a fixed number of values of a certain type
4
Q
How to make an array
A
(type) [] (arrayname) = new (type)[number]
5
Q
How to quickly initialise elements
A
(typename) [] (arrayname) = {values};
6
Q
If syntax
A
if (condition) {
//code
}
7
Q
While syntax
A
while (condition){
//code
}
8
Q
do syntax
A
do {
//code
} while (condition);
9
Q
switch syntax
A
switch (expression)
{
case value 1:
//code
break;
default: //code break; }
10
Q
for syntax
A
for (i=start; i
11
Q
What is block scope
A
A variable declared inside a pair of brackets in a method
12
Q
Break and Continue
A
Break - breaks out of the loop
Continue - ends the current pass of the loop
13
Q
How to make a for each loop
A
datatype [] arrayname = ...
for (datatype name : arrayname) {
//code
}
14
Q
Syntax of methods
A
public static datatype name (arguments) {
//code
}
15
Q
How to make a method no output
A
public static void
