Why not?

 

Because the code I need cannot be used. Let me explain..

 

try{

compound = whatever;

}catch{

//Exception Here

}

 

I cannot use compound anywhere else except for the try/catch statement.

 

Initiliaze the variable outside of the try catch like this

NBT compound = null;

 

try{

compound = CompressedStreamTools.read(stream);

}catch(Exception e){//handle}

 

now you can access the compound variable anywhere.

 

compound.whatEverTheHellYouNeed();

 

*******

 

If it helps toss me a thank you.

 

Umm dude, it doesn't work...

 

Error:

2013-10-31 18:28:38 [iNFO] [sTDERR] java.lang.NullPointerException
2013-10-31 18:28:38 [iNFO] [ForgeModLoader] The state engine was in incorrect state SERVER_STOPPING and forced into state SERVER_STOPPED. Errors may have been discarded.
2013-10-31 18:28:38 [iNFO] [sTDERR] 	at bossesPlus.item.nether.ItemNetherSpellBook.onItemRightClick(ItemNetherSpellBook.java:55)
2013-10-31 18:28:38 [iNFO] [sTDERR] 	at net.minecraft.item.ItemStack.useItemRightClick(ItemStack.java:173)
2013-10-31 18:28:38 [iNFO] [sTDERR] 	at net.minecraft.client.multiplayer.PlayerControllerMP.sendUseItem(PlayerControllerMP.java:423)
2013-10-31 18:28:38 [iNFO] [sTDERR] 	at net.minecraft.client.Minecraft.clickMouse(Minecraft.java:1343)
2013-10-31 18:28:38 [iNFO] [sTDERR] 	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1800)
2013-10-31 18:28:38 [iNFO] [sTDERR] 	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:835)
2013-10-31 18:28:38 [iNFO] [sTDERR] 	at net.minecraft.client.Minecraft.run(Minecraft.java:760)
2013-10-31 18:28:38 [iNFO] [sTDERR] 	at java.lang.Thread.run(Unknown Source)

 

 

My class:

package bossesPlus.item.nether;

import ibxm.Player;

import java.io.DataInputStream;
import java.util.List;

import bossesPlus.biomeGenBase.MobPackage.Telluris.EntityTellurose;
import bossesPlus.core.Core;
import net.minecraft.client.texturepacks.GuiTexturePacks;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.item.EntityTNTPrimed;
import net.minecraft.entity.passive.EntityWolf;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.EnumAction;
import net.minecraft.item.EnumRarity;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.CompressedStreamTools;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.src.ModLoader;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.EnumMovingObjectType;
import net.minecraft.util.MathHelper;
import net.minecraft.util.MovingObjectPosition;
import net.minecraft.util.Vec3;
import net.minecraft.world.World;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

public class ItemNetherSpellBook extends Item{

private int index;

public ItemNetherSpellBook(int par1) {
	super(par1);
	this.setMaxStackSize(1);
}

 public EnumAction getItemUseAction(ItemStack itemstack)
    {
            return EnumAction.none;
    }

 public ItemStack onItemRightClick(ItemStack itemstack, World world, EntityPlayer entityplayer)
    {
	 boolean ActivateSpell = false;
	 NBTTagCompound nbt = null;
		DataInputStream stream = new DataInputStream(this.getClass().getResourceAsStream("NetherSpellBook.dat"));
		try{
			nbt = CompressedStreamTools.read(stream);
		}catch(Exception e){
			e.printStackTrace();
		}
		nbt.setInteger("Test", nbt.getInteger("Test") + 1);
		entityplayer.sendChatToPlayer("" + nbt.getInteger("Test"));
		return itemstack;

    }
public void addInformation(ItemStack par1ItemStack, EntityPlayer par2EntityPlayer, List par3List, boolean par4)
{
	par3List.add("A Spellbook.");

}
}

Add try around where you use the varibale it will stop you from using it null.

Add try around where you use the varibale it will stop you from using it null.

 

Nope, did not fix it.

if(nbt != null) {

  nbt.setInteger("Test", nbt.getInteger("Test") + 1);

  entityplayer.sendChatToPlayer("" + nbt.getInteger("Test"));

}

Not to be mean but learn so basic java this here right now it just java problems no forge or minecraft.

if(nbt != null) {

  nbt.setInteger("Test", nbt.getInteger("Test") + 1);

  entityplayer.sendChatToPlayer("" + nbt.getInteger("Test"));

}

 

Still wont work...

Not to be mean but learn so basic java this here right now it just java problems no forge or minecraft.

 

Dude I know basic java, Im here for help on something that has nothing to do with learning basic java.

Why not?

 

Because the code I need cannot be used. Let me explain..

 

try{

NBT compound = whatever;

}catch{

//Exception Here

}

 

I cannot use compound anywhere else except for the try/catch statement.

 

That was basic Java my friend...

To check to see if nbt is null is basic java too.

To check to see if nbt is null is basic java too.

 

I understand this but it still doesn't change the fact that it does not work.

Dude I know basic java

 

then i suggest learning "advanced" java... or rethinking your definition of "basic". i remember your old thread and all you needed to know was already posted in it multiple times. people even posted code for you. the only thing stopping you from making your stuff work was.. well, not having a firm grasp of basic java..

Dude I know basic java

 

then i suggest learning "advanced" java... or rethinking your definition of "basic". i remember your old thread and all you needed to know was already posted in it multiple times. people even posted code for you. the only thing stopping you from making your stuff work was.. well, not having a firm grasp of basic java..

 

Enough of this. If anyone can help me then reply, if not then do not even bother. I'm not trying to be rude but this is ridiculous.

"Doesn't work" isn't a precise enough description of your problem.

Try again.

 

I still don't get why you couldn't put your code in the try block by the way.

"Doesn't work" isn't a precise enough description of your problem.

Try again.

 

I still don't get why you couldn't put your code in the try block by the way.

 

if(nbt != null) {

  nbt.setInteger("Test", nbt.getInteger("Test") + 1);

  entityplayer.sendChatToPlayer("" + nbt.getInteger("Test"));

}

Put a try around that because Test may not exist. And please we  are not being rude it's just that even if you read a java book from the time of java 1.0.0 it would give you the basics.

The way to learn is to when you feel you're problem is about the understanding of Java, you look it up on google. Every problem I myself encountered so far related to basic Java I've found solved at stackoverflow.com. To help you with your problem, you're writing to WorldInfo right? http://www.minecraftforge.net/forum/index.php/topic,13558.msg69837.html#msg69837

Put a try around that because Test may not exist. And please we  are not being rude it's just that even if you read a java book from the time of java 1.0.0 it would give you the basics.

 

For the last time dude, I know the basics.

The way to learn is to when you feel you're problem is about the understanding of Java, you look it up on google. Every problem I myself encountered so far related to basic Java I've found solved at stackoverflow.com. To help you with your problem, you're writing to WorldInfo right? http://www.minecraftforge.net/forum/index.php/topic,13558.msg69837.html#msg69837

 

And it might help, ill keep you posted.

The way to learn is to when you feel you're problem is about the understanding of Java, you look it up on google. Every problem I myself encountered so far related to basic Java I've found solved at stackoverflow.com. To help you with your problem, you're writing to WorldInfo right? http://www.minecraftforge.net/forum/index.php/topic,13558.msg69837.html#msg69837

 

RE: I do not understand that post, I really just do not get what he is saying to do.

Bump

You are still not describing your problem enough.

 

Where is NetherSpellBook.dat ? Did you put something in it ? How did you write it ?

 

Did you put any breakpoints while testing those lines ? What is each variable value at runtime ?

 

If you have an exception thrown, what is the offending line and the type of the issue ?

You are still not describing your problem enough.

 

Where is NetherSpellBook.dat ? Did you put something in it ? How did you write it ?

 

Did you put any breakpoints while testing those lines ? What is each variable value at runtime ?

 

If you have an exception thrown, what is the offending line and the type of the issue ?

 

No no no, the file is yet to be created, is all it will be used for is to save data, it is not a config file.

Guys. A system for this exists in vanilla and is used by maps. Subclass

WorldSavedData

and be happy.

 

I really appreciate the help but seeing as how this is not my code, I have no idea how to get started using it. Could you please help me?

An example says more than thousand words: https://github.com/diesieben07/Questology/blob/master/source/demonmodders/questology/QuestologyWorldData.java

 

So I managed to get it to work but ish. It does not stay saved to the world or anything so whenever I reload the game it resets itself...

When you change the values in your data instance, you have to call

markDirty()

on it to tell Minecraft that it needs saving.

 

How would I call it from another class though? I need it to add a counter to it on an item right click.