How to shift index in a table

Question

Hey,
My program collects 5 pieces of information per object from user. Some of the input data is in String format, rest are Integers. I create an object from this data and put in into a table. My table contains max 10 pieces of information.
I have editing options for this data, which are erase one or all pieces, or modify a piece. I erase data by simply setting the index to null. Erasing one piece is incomplete atm, here's why:
Say I have 5 pieces in table, and I erase the one with index of 0. I can't print my information because the table starts with a null value:
int index = 0;
if (table[index] != null) { System.out.println(data);} ..
My guess is that I can solve this problem by decreasing the index of pieces greater than the modified one by 1. I can imagine that I'll be using for loop here. This is where I run out of ideas: is it possible to just modify the index, or do I have to rewrite the data again?
Any help is appreciated,
br,
nomi

Answer 1

I think using for loop would be the easiest way (?).
I'm filling the table as simply as:
items[index] = new table (value, quality..);Using LinkedList seems a bit far fetched for me. But
again, if I am to use for loop, I think I would have
to rewrite the data to appropriate index?Why is a List far fetched? Type of List you pick depends on how you use the list (whether you want RandomAccess, etc.).
List items = new ArrayList(); // or LinkedList
items.remove(index); // Remove the item at index.To use an array:
Table [] items = new Table[20]; // whatever size
items[index] = new Table(value, quality, ...);
// To remove:
System.arraycopy(items, index, items, index+1, items.length-(index+1));
items[items.length-1] = null;