Noob needs some formatting help...

Hey guys,

Got a really simple one here really just I can't work out how to do it.

Say I had a command /xpshow, that would show XP, using ".getExp()" in the plugin. However when its done, the XP is shown as for example 0.4999999999 - How would I make that instead appear as just "49%" (Only 2 decimels, and hiding the fact its a decimel, and adding the % sign)

Any help would be great If you could explain how to do it that'd be better, because I'm having a similar issue in a different place too (relating to Vault-based money, and displaying time)

 

I found something kinda similar:

Code:java

 
            NumberFormat nf = NumberFormat.getPercentInstance();
            System.out.println(nf.format(0.47));
 

Found here: http://www.iro.umontreal.ca/~vaucher/Java/tutorials/Formatting.html
It prints out 47%

If you have to limit the double down to two decimal you can use number formatting like:

Code:java

 
double roundTwoDecimals(double d) {
            DecimalFormat twoDForm = new DecimalFormat("#.##");
        return Double.valueOf(twoDForm.format(d));
}
 

The above code if sent a decimal of .5857777 will return .58

Then you can look into converting a double into a percentage similar to what I linked above?

Will that work?

This may also do something:

Code:java

 
import java.text.DecimalFormat;
 
public class Main {
 
public static void main(String[] argv) throws Exception {
 
DecimalFormat df = new DecimalFormat("#%");
 
System.out.println(df.format(0.19));
 
System.out.println(df.format(-0.19));
 
}
 
}
 
/*19%
 
-19%
 
*/
 

It may be possible to use the (df.format(MyDecimal)) in other locations other than a print?

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

 

The fact it has a % sign in at all makes the server cry:

Code:

 02:16:22 [SEVERE] java.util.UnknownFormatConversionException: Conversion = '%'
02:16:22 [SEVERE] at java.util.Formatter.checkText(Unknown Source)
02:16:22 [SEVERE] at java.util.Formatter.parse(Unknown Source)
02:16:22 [SEVERE] at java.util.Formatter.format(Unknown Source)
02:16:22 [SEVERE] at java.util.Formatter.format(Unknown Source)
02:16:22 [SEVERE] at java.lang.String.format(Unknown Source)
02:16:22 [SEVERE] at me.Flenix.mmoInfoEXP$CustomLabel.onTick(mmoInfoEXP.java:75)
02:16:22 [SEVERE] at org.getspout.spoutapi.gui.GenericScreen.onTick(GenericScreen.java:140)
02:16:22 [SEVERE] at org.getspout.spoutapi.gui.InGameScreen.onTick(InGameScreen.java:69)
02:16:22 [SEVERE] at org.getspout.spout.player.SpoutCraftPlayer.onTick(SpoutCraftPlayer.java:1162)
02:16:22 [SEVERE] at org.getspout.spout.ServerTickTask.run(ServerTickTask.java:41)
02:16:22 [SEVERE] at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:126)
02:16:22 [SEVERE] at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:588)
02:16:22 [SEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:506)
 02:16:22 [SEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

And for reference:

Code:

 public void onTick() {
if (check) {
DecimalFormat dformat = new DecimalFormat("#%");
  setText(String.format("EXP: " + (dformat.format(getScreen().getPlayer().getExp()))));

The last line is 75

 

I'm not entirely sure then. If you find anything let me know though because this seems to be a near impossible thing to find on google.

Actually first convert it to two decimal places, then try:

Code:java

 
Double myInt = 0.1234;
Console.WriteLine( myInt.ToString( "P", nfi ) ); //writes out the number with a %
 
//mind you you would be using well... could use
 
String MyString =  myInt.ToString( "P", nfi ) ;
 

as seen here:
http://www.velocityreviews.com/forums/t106173-how-to-convert-double-to-percent.html

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