using parse

[mustachMan]

what does
Double.parseDouble();
and
Integer.parseInt();
do?
I have seen it in code and looked it up in different places but i couldn't understand it

[Lil_Aziz1]

Integer.parseInt(String s)

It takes a String object as its parameter and makes it into an Integer object (Integer objects can be boxed into primitive data)
Example:

String num = "523";
int x = Integer.parseInt(num);

It converted the string "523" into an Integer object which autoboxed it to an int primitive data. This is what happens when you do not parse:

String num = "523";
int x = num;

[COLOR="Red"]Exception in thread "main" java.lang.Error: Unresolved compilation problem: 
	Type mismatch: cannot convert from String to int[/COLOR]

The same thing goes for double.

String num = "523.23";
double x = Double.parseDouble(num);

It converted the string "523.23" into an Double object which autoboxed it to an int primitive data.

[mustachMan]

Oh okay thanks that's preety simple