Stephen C

Australia

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Twitter: @vwrangler

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What does "Could not find or load main class" mean?

java class main asked Aug 7, 2013 at 3:02

stackoverflow.com

535 votes

What does a "Cannot find symbol" or "Cannot resolve symbol" error mean?

java compiler-errors cannot-find-symbol asked Sep 7, 2014 at 1:12

stackoverflow.com

65 votes

"Error: Main method not found in class MyClass, please define the main method as..."

java runtime-error main nosuchmethoderror asked Mar 23, 2011 at 15:02

stackoverflow.com

48 votes

Cost of using weak references in Java

java garbage-collection weak-references asked Aug 9, 2009 at 3:27

stackoverflow.com

44 votes

Are Thread.stop and friends ever safe in Java?

java multithreading asked Aug 16, 2009 at 2:07

stackoverflow.com

34 votes

Canonicalizing JSON files

java ruby json asked Sep 25, 2012 at 14:09

stackoverflow.com

24 votes

What does "possible lossy conversion" mean and how do I fix it?

java compiler-errors asked Aug 1, 2018 at 11:30

stackoverflow.com

23 votes

Replacement for RequestDumperValve in Tomcat 7

tomcat logging tomcat7 asked Apr 15, 2011 at 5:56

stackoverflow.com

14 votes

What exactly does "berks update <cookbook-name>" do?

chef berkshelf berksfile asked Jan 10, 2014 at 1:29

stackoverflow.com

11 votes

Gift reward offered after accepting an answer

discussion asked Sep 3, 2011 at 11:01

meta.stackexchange.com

Top Answers

1609

What does "Could not find or load main class" mean?

stackoverflow.com

766

How to get the current date/time in Java

stackoverflow.com

550

What does a "Cannot find symbol" or "Cannot resolve symbol" error mean?

stackoverflow.com

548

What is a NullPointerException, and how do I fix it?

stackoverflow.com

546

Remove last character of a StringBuilder?

stackoverflow.com

429

How do I get the first n characters of a string without checking the size or going out of bounds?

stackoverflow.com

404

What does "opt" mean (as in the "opt" directory)? Is it an abbreviation?

stackoverflow.com

366

How can I generate Javadoc comments in Eclipse?

stackoverflow.com

353

Trim a string based on the string length

stackoverflow.com

330

What is the difference between a mutable and immutable string in C#?

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325

Convert ArrayList<String> to String[] array

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303

The difference between the Runnable and Callable interfaces in Java

stackoverflow.com

300

Getting the IP address of the current machine using Java

stackoverflow.com

295

What is the difference between connection and read timeout for sockets?

stackoverflow.com

272

How to remove line breaks from a file in Java?

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263

What is x after "x = x++"?

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253

What's the difference between ZonedDateTime and OffsetDateTime?

stackoverflow.com

249

Why is (a*b != 0) faster than (a != 0 && b != 0) in Java?

stackoverflow.com

231

What is IPV6 for localhost and 0.0.0.0?

stackoverflow.com

229

Is it possible in Java to catch two exceptions in the same catch block?

stackoverflow.com

217

Is it good practice to make the constructor throw an exception?

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207

Byte[] to InputStream or OutputStream

stackoverflow.com

195

Use of Java's Collections.singletonList()?

stackoverflow.com

188

Is it safe to use Project Lombok?

stackoverflow.com

186

Java switch statement: Constant expression required, but it IS constant

stackoverflow.com

177

Does the Java &= operator apply & or &&?

stackoverflow.com

177

How do operating systems… run… without having an OS to run in?

softwareengineering.stackexchange.com

175

Unable to install Maven on Windows: "JAVA_HOME is set to an invalid directory"

stackoverflow.com

174

Are arrays passed by value or passed by reference in Java?

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173

Why is creating a Thread said to be expensive?

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