I can compile my progam but I can't run it!

[mikaelafiery]

Here is the code:

package me.mikaelafiery.TextBasedRPG;
import java.util.Scanner;

public class FirstGame {
	public static void main(String[] args){
		String Gamemode;
		String axe;
		String playername;
		Scanner gmscanner = new Scanner(System.in);
		Scanner axescanner = new Scanner(System.in);
		Scanner namescan = new Scanner(System.in);
		int notvalidcounter = 5;
		int itemaxe = 0;
		int health = 100;
		
		System.out.println("Welcome to Mika's first game!");
		System.out.println("Which Gamemode would you like to choose?");
		System.out.println("Type 'tutorial' to see how to play the game");
		System.out.println("Or type 'start' if you already know how to play");
		
		Gamemode = gmscanner.nextLine();
		if(Gamemode.equals("tutorial")){
			System.out.println("There are various choices in the game");
			System.out.println("If there are new choices you will be informed");
			System.out.println("The choice 'ignore' is usually unneccesary but it sometimes");
			System.out.println("Now to start the game just type 'start'");
				Gamemode = gmscanner.nextLine();
			}
		if(Gamemode.equals("start")){
				System.out.println("What's your name?");
				playername = namescan.nextLine();
			System.out.println("Health: " + health);
			System.out.println("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");
			System.out.println("You see a pile of axes!");
			System.out.println("Will you 'grab one' or 'ignore'?");
			
			axe = axescanner.nextLine();
			if(axe.equals("grab one")){
				itemaxe++;
				System.out.println(playername + ": I'll probably need this...");
			}else if(axe.equals("ignore")){
				System.out.println("*You ignore the axes*");
			}
			
			System.out.println("You see a village in the distance!");
		}else{
			System.out.println("That option is not valid!");
			System.out.println("Goodbye");
			}System.exit(0);
		}
	}

[KevinWorkman]

What do you mean you can't run it? How are you trying to run it? What happens when you try? Do you see an error message? If so, what?

[mikaelafiery]

What do you mean you can't run it? How are you trying to run it? What happens when you try? Do you see an error message? If so, what?

I used the Command Prompt!
I did

javac FirstGame.java

then I did

java FirstGame

But it came up with this error:

Exception in thread "main" java.lang.UnsupportedClassVersionError: FirstGame : U
nsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknow n Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: FirstGame. Program will exit.

[KevinWorkman]

Did you google that error message?

That's a result of compiling with a newer version of Java, like Java 7, but trying to run your code with an older version of Java, like Java 6.

Check which version of javac (probably 7) and java (probably 6) you're using. You might have to look at your path specification.

[mikaelafiery]

Did you google that error message?

That's a result of compiling with a newer version of Java, like Java 7, but trying to run your code with an older version of Java, like Java 6.

Check which version of javac (probably 7) and java (probably 6) you're using. You might have to look at your path specification.

I do have jdk1.7.0_04 and jre7 but it still runs as jre6! I have two Program Files folders and one is called:
Program Files
and the other:
Program Files(x86)

I always use Program Files(x86) but it seems to be using jre6 from the other folder

:'(

[mikaelafiery]

This is really complicated stuff :'(

[b4viral]

I do have jdk1.7.0_04 and jre7 but it still runs as jre6! I have two Program Files folders and one is called:
Program Files
and the other:
Program Files(x86)

I always use Program Files(x86) but it seems to be using jre6 from the other folder

:'(

i hope you are aware of class path, according to me it might be pointing to the older virsion of jre.
you can check environment variables and set it to the bin directory of the latest jre.

[mikaelafiery]

i hope you are aware of class path, according to me it might be pointing to the older virsion of jre.
you can check environment variables and set it to the bin directory of the latest jre.

Okay, I've reinstalled the latest jre so I'll go check if the CLASSPATH is correct

[mikaelafiery]

The classpath seems correct:

.;C:\Program Files (x86)\Java\jre7\lib\ext\QTJava.zip

but it still is running it on jre6 :/

[b4viral]

The classpath seems correct:

.;C:\Program Files (x86)\Java\jre7\lib\ext\QTJava.zip

but it still is running it on jre6 :/

it should be C:\Program Files (x86)\Java\jre7\bin as i said.

FYI

Classpath is path to executable files of your system, you can find java.exe in the above path.
referring that your program will be executed.

also please check if the referance to your old runtime environment is not there in classpath.

[KevinWorkman]

Classpath != path.

[b4viral]

Classpath != path.

Hi mikaelafiery,

regarding my above post, i am extreamly sorry, class path is the path where where your java .class files will be expected to be present.
what i was talking about was PATH variable in system environment variables.

Thanks Kevin for correcting me.


-vj

[mikaelafiery]

Hi mikaelafiery,

regarding my above post, i am extreamly sorry, class path is the path where where your java .class files will be expected to be present.
what i was talking about was PATH variable in system environment variables.

Thanks Kevin for correcting me.


-vj

Ohh thankss!

[Tolls]

The classpath seems correct:

.;C:\Program Files (x86)\Java\jre7\lib\ext\QTJava.zip

but it still is running it on jre6 :/

Oooh I hate QuickTime for that...