Hashmap + Integer[]: Increase an single integer of it?

How can I increase an single Integer in a hashmap with Integer[] by 1?

Code:java

 
 
public void raiseCount(String playername, Integer itemtype //Is that correct?)
{
Integer[] count = database.get(playername);
if (count == null) {
database.put(playername, new Integer[7]);
} else {
 // Raise the given itemtype here (+1). Got 7 Itemtypes.
}
}
 

 

recon88
I think you can just use int itemtype and int[] count. Instead of using HashMap<String, Integer[]> you could use HashMap<String, int[]> instead. I believe int[] arrays are a class type as well, and thus can be represented as such in a hashmap.

PHP:

public void raiseCount(String playername, int itemtype)
{
    int[] count = database.get(playername);
    if (count == null) {
        count = new int[7]; // Put in new array
        database.put(playername, count);
    }
    // Raise the given itemtype here (+1). Got 7 Itemtypes.
    // The count array instance is the same as in the map
    // Changing it here will automatically change it in the map
    // To get the index, you might need an itemtype -> index conversion function
    count[getIndex(itemType)]++;
}
 
private final Material[] materials = new Material[] {Material.WOOD, Material.COAL, Material.IRON_ORE, Material.STICK, Material.DIAMOND, Material.STONE, Material.GOLD_BLOCK};
public int getIndex(int itemType) {
    for (int i = 0; i < materials.length; i++) {
        if (materials[i].getId() == itemType) {
            return i;
        }
    }
    return -1; // This will cause an error!
}

 

Wait. Where is the database.put? Don't I need that?

Code:

To get the index, you might need an itemtype -> index conversion function

This is where I'm stuck.

 

recon88
Edited my post with the added function.

 

Code:java

public void raiseCount(String playername, Integer itemtype) {
Integer[] count = database.get(playername);
if (count == null) {
count = new Integer[8];
database.put(playername, count);
} else
count[getIndex(itemtype)]++;
database.put(playername, count);
}
 

"getIndex(itemtype)" gives me an NPE if I pass an ItemID. Am I doing it wrong?

Code:java

 
private final Material[] materials = new Material[] {Material.STONE, Material.COAL_ORE, Material.IRON_ORE, Material.GOLD_ORE, Material.DIAMOND_ORE, Material.EMERALD_ORE, Material.REDSTONE_ORE, Material.LAPIS_ORE};
public int getIndex(int itemType) {
for (int i = 0; i < materials.length; i++) {
if (materials.getId() == itemType) {
return i;
}
}
return -1;
}
 

Code:java

 @EventHandler
public void onBlockBrake(BlockBreakEvent event) {
Block blocktype = event.getBlock();
String playername = event.getPlayer().getName().toLowerCase();
 
if (blocktype.getType().equals(Material.STONE)) {
System.out.println("STONE");
plugin.raiseCount(playername, blocktype.getTypeId());
}

Nevermind.

Replaced

Code:

count = new Integer[8];

with

Code:

count = new Integer[] { 0, 0, 0, 0, 0, 0, 0 };

for new players.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.