Lecture 1
●​ Print with cout << “_”<< endl;
Lecture 2
●​ Block comments above the function should have /*
●​ In line comments should have //
●​ Once u declare a variable type you cant change it:
○​ Ex: cant do int a = 5 then string a = “hello”
●​ You also can't redefine a variable l
○​ Ex: cant do int a = 5 the int a = 7
○​ You can change it like this:
Int a = 5
A=7
●​ i ++ increment by 1
●​ =: sets equal to
●​ ==: is equal to
●​ !: Boolean not
●​ &&: boolean and
●​ ||: boolean or
Lecture 3
●​ Always return 0 from main
●​ Void function doesn’t return a value
○​ Don't need a return statement at the end of it
■​ You can put a return statement at the end of it to signal ur leaving the function,
you can just write “return;” but you can't put return #
●​ If theres no main function your program cant compile
●​ Anytime you create a variable, you have to give it a data type like int x
●​ If you are squaring an int you get an integer
●​ Double is when its not an int
●​ You can do math in your return statement like return x*x
●​ &: pass by reference
○​ Otherwise ur passing by value
Lecture 4