traffic light

[razer]

Hi everybody

I'm making a project where i need to make a simulation of a traffic light.
The cars appear randomly, and are represented by letter, the traffic light stays open for x seconds, then it closes. The output is something like this.

0: ....-
1: ....-
2: a...-
3: .a..-
4: ..a.-
5: b..a|
6: .b.a|
7: ..ba|
8: ...ba|
9: ....ba|
10: .....b-
11: ......-
...
42: .j.i..h-
43: ..j.i..-
44: k..j.i.-
45: .k..j.i|

Thanks a lot in advance.

[RedSon]

Hi everybody

I'm making a project where i need to make a simulation of a traffic light.
The cars appear randomly, and are represented by letter, the traffic light stays open for x seconds, then it closes. The output is something like this.

0: ....-
1: ....-
2: a...-
3: .a..-
4: ..a.-
5: b..a|
6: .b.a|
7: ..ba|
8: ...ba|
9: ....ba|
10: .....b-
11: ......-
...
42: .j.i..h-
43: ..j.i..-
44: k..j.i.-
45: .k..j.i|

Thanks a lot in advance.

We aren't going to do your homework for you. Did you have a question about this or did you just want to share?

[razer]

I don't want anyone to solve this for me, i just need some help in some parts.

For example this part:

for (d=0;  d <= m;  d += 1) {  
            System.out.println(d);

By the way, 'd' are the seconds, 'm' the second the program stops, and 'n' the time the traffic light takes to change.
This cicle doens't seem to work, but if i put a number instead of the 'm', it works properly, if 'd' is every second, i want it to stops once it reaches the value of 'm', but i can't get it to do that.

[RedSon]

I don't want anyone to solve this for me, i just need some help in some parts.

For example this part:

for (d=0;  d <= m;  d += 1) {  
            System.out.println(d);

By the way, 'd' are the seconds, 'm' the second the program stops, and 'n' the time the traffic light takes to change.
This cicle doens't seem to work, but if i put a number instead of the 'm', it works properly, if 'd' is every second, i want it to stops once it reaches the value of 'm', but i can't get it to do that.

First, as I'm sure you'll quickly learn, having variable names like "seconds' and "stopSecond" will eliminate the need for you to say things like "By the way, 'd' are the seconds, 'm' the second the program stops..." In case you can't read between the lines, use descriptive variable names. The other problem is that I have no idea how to help you because you have not given me all the information about how your loop works, there is some random variable in there and I don't know what it is.

[Stubert]

Have you made sure that 'm' has been initialised? If it is has not then it will either never execute the loop because the program does not know what 'm' is..

[RedSon]

Have you made sure that 'm' has been initialised? If it is has not then it will either never execute the loop because the program does not know what 'm' is..

Exactly! Which brings us back around to variable names. Please use descriptive variable names.

[BigDaddyLH]

Exactly! Which brings us back around to variable names. Please use descriptive variable names.

Story time: I was teaching Java and I saw that one student's Java code had the variable names: variable1, variable2, variable3, ... I pointed this out and he still didn't see the problem. I told him that Java is an object-oriented language, so suggestive names shouldn't be hard to think of. Later I checked his code and he had renamed the variables... to object1, object2, object3...

[Ganon11]

Kids are very dumb at times.

Anyway, I was having a problem with String706 in my program, it's the one right after String705, and I think it leads into String707...

[RedSon]

Story time: I was teaching Java and I saw that one student's Java code had the variable names: variable1, variable2, variable3, ... I pointed this out and he still didn't see the problem. I told him that Java is an object-oriented language, so suggestive names shouldn't be hard to think of. Later I checked his code and he had renamed the variables... to object1, object2, object3...

I don't understand what the problem here is...?