array instruction...

[Cris7ian]

wazzap guys, look... im pretty n00b at programming and i've found this little line of code that i can't undertstand, i'ts a syntaxis problem so i only need you to tell me what it does

return array[(end + 1 + n) % array.length];

i know what a return is and i understand everything abourt asignations, arrays and stuff. but i have been programming in java lenguaje only for 2 months

tnxs in advanced

[Pilot-Doofy]

Which language? Many languages have very similar syntax and without knowing which one exclusively, it's hard to say what you should be using.

[whatthedeuce]

At 3/9/06 08:03 PM, Cris7ian wrote: wazzap guys, look... im pretty n00b at programming and i've found this little line of code that i can't undertstand, i'ts a syntaxis problem so i only need you to tell me what it does

return array[(end + 1 + n) % array.length];

i know what a return is and i understand everything abourt asignations, arrays and stuff. but i have been programming in java lenguaje only for 2 months

tnxs in advanced

We would really have to know what was in "array", and what the value of "end" and "n" are to help you.

[Craige]

At 3/9/06 08:39 PM, Pilot-Doofy wrote: Which language? Many languages have very similar syntax and without knowing which one exclusively, it's hard to say what you should be using.

He said Java.

[0x41]

At 3/9/06 08:39 PM, Pilot-Doofy wrote: Which language? Many languages have very similar syntax and without knowing which one exclusively, it's hard to say what you should be using.

:but i have been programming in java lenguaje only for 2 months

.

[Cris7ian]

At 3/9/06 08:39 PM, whatthedeuce wrote::

We would really have to know what was in "array", and what the value of "end" and "n" are to help you.

im talking about a array list, you know, an unlimited array so to speak, i understand perfectly how it works but i dont understant the % function, i havent seen it in my class (college class of course) i dont need an explanation bout what a list is, only need to know the role of the % carachter in the instruction, im not that familiar with java.

heres the code anyway

public class pArrayList{
protected Object[] array;
protected int start,end,number;

public pArrayList(int maxsize){
array = new Object[maxsize];
start = end = number = 0;
}
public boolean isEmpty(){
return number == 0;
}
public boolean isFull(){
return number >= array.length;
}
public int size(){
return number;
}
public void insert(Object o){
if(number < array.length){
array[start = (++start % array.length)] = o;
number++;
}
}
public void insertEnd(Object o){
if(number < array.length){
array[end] = o;
end = (--end + array.length) % array.length;
number++;
}
}
public Object remove(){
if(isEmpty())
return null;
number--;
int i = start;
start = (--start + array.length) % array.length;
return array[i];
}
public Object removeEnd(){
if(isEmpty())
return null;
number--;
return array[end = (++end % array.length)];
}
public Object peek(int n){
if(n >= number)
return null;
return array[(end + 1 + n) % array.length];
}
}

[0x41]

Modular division, basically the remainder of (array[(end + 1 + n) / array.length)

[Cris7ian]

At 3/9/06 09:39 PM, 0x41 wrote: Modular division, basically the remainder of (array[(end + 1 + n) / array.length)

thanks dude!

a mod b

of course!