CODEWITHSUNDEEP
javacloud9-ide
John Richfield
John Richfield

Reputation: 141

Error: Could not find or load main class Mainclass

So I followed this site here and I don't think the part where I went wrong was the first part when it was talking about directories and stuff. I'm a real noob. Anyways, when I try to run the java program, it says Error: Could not find or load main class Mainclass. Any idea what's going on? I've tried installing the java jdk but that doesn't make a difference.

Details:

Here's a screenshot of what my page looks like.

enter image description here

Is there something I should change in my .build file? (I used the same one on the site). Thanks in advance.

Upvotes: 0

Views: 1365

Answers (3)

Xeroxis Labz
Xeroxis Labz

Reputation: 9

Happened to me recently, the Class file saved in your Cloud9 folder has a lower case letter, different from the Class name uppercase

Filename: Mainclass ClassName: MainClass

Typo in Filename image

Upvotes: 0

Maysam Hafezparast
Maysam Hafezparast

Reputation: 33

Try below code:

sudo apt-get update
sudo apt-get install default-jdk

I cannot see your code but this is a sample code:

class greeting {
  public static void main(String args[]) {
    System.out.print("hi");
  }
}

Upvotes: 0

user4920910
user4920910

Reputation:

You need to have a class called Main (or main) with a method like this one:

public static void main(String [] args){
     //your main class code here

}

EDIT:

Try renaming your class to "Main" (no quotes).

Large Sized EDIT:

1.You need to make your class public class MainClass

2.You MUST have a package declaration!!!

3.You SHOULD probably rename your class to "Main" and your java file to "Main". Other than that, your programming is pretty solid!

Upvotes: 1

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