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marx123 · 12-06-2006, 08:22 AM

Is Java and C++ the same

because im studying on a course
im now on the part of Variables...

ractoc · 12-06-2006, 02:04 PM

No definately not. There's loads of differences between Java and C++. For instance, Java is an OO language, C++ can be used to program OO.

But the biggest difference when it comes to variables would be that C++ has pointers and Java does not. At least not in a way that you can directly manipulate them.

naruto1327 · 12-06-2006, 11:50 PM

C++ is OO too...

lothia · 12-07-2006, 03:01 AM

hmm if you are talking about the basics, they are almost the same. As in the way you program and think. Pointers are considered beginner as well but we will exclude that. Any ways they are close but not any where near the same, if you can read one you can read the other.

marx123 · 12-07-2006, 07:32 AM

Quote:

Originally Posted by lothia

hmm if you are talking about the basics, they are almost the same. As in the way you program and think. Pointers are considered beginner as well but we will exclude that. Any ways they are close but not any where near the same, if you can read one you can read the other.

oh okay

by the what is the use of

include [iostream]

name spacestd;

Class Car

every time i compile that..its says the Class Car is incorrect...

lothia · 12-08-2006, 03:00 AM

hmm no idea what a Class car is, I havn't done C++ for a while but the include [iostream] if I remember correctly is automaticly adding a premade file which allows you to do the cin, cout etc.
In java you do not require anything like that, but you create everything in classes. How ever variables are the same as far as I have noticed. Not any different ones in either, Arrays are different in how you call them though (but that holds multiple variables)

marx123 · 12-08-2006, 10:17 PM

Quote:

Originally Posted by lothia

hmm no idea what a Class car is, I havn't done C++ for a while but the include [iostream] if I remember correctly is automaticly adding a premade file which allows you to do the cin, cout etc.
In java you do not require anything like that, but you create everything in classes. How ever variables are the same as far as I have noticed. Not any different ones in either, Arrays are different in how you call them though (but that holds multiple variables)

i guess...
for variables

is salary a variable?
i talk to my professor about this..he doesnt answer me..i dont know why....
i bet he hates me dunno?

gee lothia..if i have some questions i post a thread here regarding C++

thanks

lothia · 12-09-2006, 06:40 AM

hmm well you can have a variable called salary.
It would probably be a double. Which would be called by
double salary;
or
double salary = <value>

hmm thats java actually but last time I checked calling them is the same.

masterarcher · 12-28-2006, 01:12 AM

Java and C++ same? Nope, they aren't. They are both based upon C but that doesn't make them same. The major differences are that C++ supports Multiple Inheritance and Genericity while Java doesn't and Java supports persistence which C++ doesn't. Java is a pure Object Oriented Language while C++ isn't (it can only be used to program OO, its not pure OOP). C++ has pointers, not Java. And pointers are important, that's what makes C++ programs faster and efficient than Java ones when the size gets bigger. You include header files like #include <iostream> in preprocessor in C++, not Java. In Java, you use something like import java.lang.*;. There's major syntactical difference between the languages too. Java boasts that programs can be made by using shorter codes than C++, and it does require less amount of code than C++. Other than these major differences though, they are much similar. That doesn't mean they are same though, heck, if they were same, Java, (most of the) programs made by which can run easily inside a web browser would have overtaken C++ ages ago.

Cj Shadows · 12-28-2006, 09:27 PM

Java hides some things that C++ doesnt. But you use "using namespace std;" so when you do somthing with iostream like "cout" you just have to put "cout" instead of "std::cout".

12-06-2006, 08:22 AM	#1 (permalink)
marx123 Olpah's Object Join Date: May 2006 Location: inside the big ball lurking for candied apples Posts: 2,730 Reputation: 10	Is Java and C++.... Is Java and C++ the same because im studying on a course im now on the part of Variables... __________________ ChUunin NinjA oF tHe FoRuM

12-07-2006, 03:01 AM	#4 (permalink)
lothia Staff Admin Join Date: May 2006 Location: Kent Washington Posts: 5,213 Reputation: 29	hmm if you are talking about the basics, they are almost the same. As in the way you program and think. Pointers are considered beginner as well but we will exclude that. Any ways they are close but not any where near the same, if you can read one you can read the other. __________________ Moderator since Aug 2004. I am a guy. Email me at lothia@gmail.com FFXI Tsukisa: 60pld/30War (retired) The OnRPG War

12-08-2006, 03:00 AM	#6 (permalink)
lothia Staff Admin Join Date: May 2006 Location: Kent Washington Posts: 5,213 Reputation: 29	hmm no idea what a Class car is, I havn't done C++ for a while but the include [iostream] if I remember correctly is automaticly adding a premade file which allows you to do the cin, cout etc. In java you do not require anything like that, but you create everything in classes. How ever variables are the same as far as I have noticed. Not any different ones in either, Arrays are different in how you call them though (but that holds multiple variables) __________________ Moderator since Aug 2004. I am a guy. Email me at lothia@gmail.com FFXI Tsukisa: 60pld/30War (retired) The OnRPG War

12-09-2006, 06:40 AM	#8 (permalink)
lothia Staff Admin Join Date: May 2006 Location: Kent Washington Posts: 5,213 Reputation: 29	hmm well you can have a variable called salary. It would probably be a double. Which would be called by double salary; or double salary = <value> hmm thats java actually but last time I checked calling them is the same. __________________ Moderator since Aug 2004. I am a guy. Email me at lothia@gmail.com FFXI Tsukisa: 60pld/30War (retired) The OnRPG War

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12-06-2006, 02:04 PM	#2 (permalink)
ractoc Cloud's Hair Spray Join Date: Jun 2006 Location: Netherlands Posts: 61 Reputation: 10	No definately not. There's loads of differences between Java and C++. For instance, Java is an OO language, C++ can be used to program OO. But the biggest difference when it comes to variables would be that C++ has pointers and Java does not. At least not in a way that you can directly manipulate them.

12-06-2006, 11:50 PM	#3 (permalink)
naruto1327 Dante’s Inferno Join Date: May 2006 Location: OLD PROFILE. NEW: NOODLEPOWA Posts: 608 Reputation: 10	C++ is OO too...

12-28-2006, 01:12 AM	#9 (permalink)
masterarcher Marios's Mustache Wax Join Date: Aug 2006 Posts: 11 Reputation: 10	Java and C++ same? Nope, they aren't. They are both based upon C but that doesn't make them same. The major differences are that C++ supports Multiple Inheritance and Genericity while Java doesn't and Java supports persistence which C++ doesn't. Java is a pure Object Oriented Language while C++ isn't (it can only be used to program OO, its not pure OOP). C++ has pointers, not Java. And pointers are important, that's what makes C++ programs faster and efficient than Java ones when the size gets bigger. You include header files like #include <iostream> in preprocessor in C++, not Java. In Java, you use something like import java.lang.*;. There's major syntactical difference between the languages too. Java boasts that programs can be made by using shorter codes than C++, and it does require less amount of code than C++. Other than these major differences though, they are much similar. That doesn't mean they are same though, heck, if they were same, Java, (most of the) programs made by which can run easily inside a web browser would have overtaken C++ ages ago.

12-28-2006, 09:27 PM	#10 (permalink)
Cj Shadows McFox Sandwich Join Date: Jul 2006 Posts: 463 Reputation: 10	Java hides some things that C++ doesnt. But you use "using namespace std;" so when you do somthing with iostream like "cout" you just have to put "cout" instead of "std::cout".