Exception in thread "main" java.lang.Error: Unresolved compilation (PhraseOMatic)

Question

I tried to run the code from Head First Java as the following:

public class PhraseOMatic {
   public static void main(String[] args){

    String[] wordListOne = {"24/7", "mult-iTier", "30,000 foot", "B-to-B", "win-win", "front-end", "web-based", "pervasive", "smart", "six-sigma", "critical-path", "dynamic"};

    String[] wordListTwo = {"empowered", "sticky", "value-added", "oriented", "centric", "distributed", "clustered", "branded", "outside-the-box", "positioned", "networked", "focused", "leveraged", "aligned", "targeted", "shared", "cooperative", "accelerated"};

    String[] wordListThree = {"process", "tipping-point", "solution", "architecture", "cor competency", "strategy", "mindshare", "portal", "space", "vision", "paradigm", "mission"};

    int oneLength = wordListOne.length;
    int twoLength = wordListTwo.length;
    int threeLength = wordListThree.length;

    int rand1 = (int) (Math.random() * oneLength);
    int rand2 = (int) (Math.random() * twoLength);
    int rand3 = (int) (Math.random() * twoLength);

    String phrase = wordListOne[rand1] + " " + wordListTwo[rand2] + " " + wordListThree[rand3];

    System.out.println("What we need is a " + phrase);
    }
}

and it is here that I receive this error:

Exception in thread "main" java.lang.Error: Unresolved compilation problem:

at PhraseOMatic.main(apples.java:2)

I see from the error that the problem is in line 2, but I can identify the error

Please post the code along with package statement so we can help you out. — KV Prajapati
– KV Prajapati, Commented Aug 27, 2012 at 4:53
@AVD That appears to be all of OP's code. Regardless, OP provided sufficient information to solve the issue: class PhraseOMatic is saved in a file named "apples.java". — FThompson
– FThompson, Commented Aug 27, 2012 at 4:58
I think there is an IDE and may be OP has removed package statement or something else. — KV Prajapati
– KV Prajapati, Commented Aug 27, 2012 at 5:02

KV Prajapati · Accepted Answer · 2012-08-27 04:51:58Z

2

Have a look at exception trace (PhraseOMatic.main(apples.java:2)). Your public class PhraseOMatic must be saved with PhraseOMatic.java file. Name of top-level public class and .java file must be same.

answered Aug 27, 2012 at 4:51

KV Prajapati

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1 Comment

KV Prajapati Over a year ago

Rename your .java file to PhraseOMatic.java. Do you have IDE (netbeans/eclipse etc)?

christian.vogel · Accepted Answer · 2012-08-27 04:54:31Z

0

Just look at PhraseOMatic.main(apples.java:2). Your file is named apples.java, but in Java your files HAVE to have the same name as your classes. In your case PhraseOMatic.java.

answered Aug 27, 2012 at 4:54

christian.vogel

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Comments

Mohammod Hossain · Accepted Answer · 2012-08-28 08:21:08Z

0

your stake trace:

PhraseOMatic.main(apples.java:2)

So you are missing to run java to level class; your java main class is PhraseOMatic

edited Aug 28, 2012 at 8:21

answered Aug 27, 2012 at 4:54

Mohammod Hossain

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