Hello guys,
I dont know if it is the right place to ask about java but i have a
problem.
I am trying to “translate” some java code to ruby code for a project
in my univercity. My professor gave me this java code an i want to
give him the same sunctionality in ruby.
Here is the code:
//Classes A and B
class A {
private B ref;
public void m1(){
System.out.println(ref.foo());
}
public void setRef(B aB){
ref = aB;
}
}
class B {
public int foo() {
return B;
}
}
//Creating the objects
A A1 = new A();
B B1 = new B();
A1.setRef(B1);
A1.m1();
This code is creating a connection between the two classes A and B.
I am a little confused about how to write this to ruby.
Any help would be useful!
Thanx in advance
Kostas L.
Kostas L. wrote:
I am a little confused about how to write this to ruby.
Any help would be useful!
Read this first:
http://www.catb.org/~esr/faqs/smart-questions.html#intro
Basically what you need to do is:
- Start writing some Ruby code
- Keep going until you get stuck - e.g. you don’t know how to do step
X, or your program crashes and you don’t understand why
- Use google to solve your problem
- If you cannot find the solution using google, post the relevant parts
of your code so far, preferably in the form of a short standalone
program which is runnable by someone else which demonstrates the problem
- Ask a specific question about that code
Regards,
Brian.
On Tue, Aug 4, 2009 at 4:11 AM, Brian C.[email protected]
wrote:
Kostas L. wrote:
I am a little confused about how to write this to ruby.
Any help would be useful!
Read this first:
How To Ask Questions The Smart Way
You might also try writing a test case to help you figure out what the
expected behaviour should be and work towards it:
cat KostasL.rb
require ‘test/unit’
###/ Code Below ###
class A; end
class B; end
###\ Code Above /###
class KostasLTest < Test::Unit::TestCase
def test_001
a = A.new
b = B.new
a.set_reference(b)
result = a.method1
expected = "???"
assert_equal(expected, result)
end
end
ruby KostasL.rb
Loaded suite KostasL
Started
E
Finished in 0.001412 seconds.
- Error:
test_001(KostasLTest):
NoMethodError: undefined method set_reference' for #<A:0xb7c37550> KostasL.rb:16:in
test_001’
1 tests, 0 assertions, 0 failures, 1 errors
(So, an obvious next step would be to define a set_reference method in
class A; etc.)