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Top Questions
1511
votes
What does “Could not find or load main class” mean?
java
class
main
asked Aug 7 '13 at 3:02
stackoverflow.com
436
votes
What does a “Cannot find symbol” or “Cannot resolve symbol” error mean?
java
compiler-errors
cannot-find-symbol
asked Sep 7 '14 at 1:12
stackoverflow.com
60
votes
“Error: Main method not found in class MyClass, please define the main method as…”
java
runtime-error
main
nosuchmethoderror
asked Mar 23 '11 at 15:02
stackoverflow.com
46
votes
Cost of using weak references in Java
java
garbage-collection
weak-references
asked Aug 9 '09 at 3:27
stackoverflow.com
44
votes
Are Thread.stop and friends ever safe in Java?
java
multithreading
asked Aug 16 '09 at 2:07
stackoverflow.com
29
votes
Canonicalizing JSON files
java
ruby
json
asked Sep 25 '12 at 14:09
stackoverflow.com
23
votes
Replacement for RequestDumperValve in Tomcat 7
tomcat
logging
tomcat7
asked Apr 15 '11 at 5:56
stackoverflow.com
14
votes
What exactly does “berks update <cookbook-name>” do?
chef
berkshelf
berksfile
asked Jan 10 '14 at 1:29
stackoverflow.com
14
votes
What does “possible lossy conversion” mean and how do I fix it?
java
compiler-errors
asked Aug 1 '18 at 11:30
stackoverflow.com
11
votes
Gift reward offered after accepting an answer
discussion
asked Sep 3 '11 at 11:01
meta.stackexchange.com
1
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Top Answers
1350
What does “Could not find or load main class” mean?
stackoverflow.com
697
How to get the current date/time in Java
stackoverflow.com
520
What is a NullPointerException, and how do I fix it?
stackoverflow.com
463
Remove last character of a StringBuilder?
stackoverflow.com
459
What does a “Cannot find symbol” or “Cannot resolve symbol” error mean?
stackoverflow.com
371
How do I get the first n characters of a string without checking the size or going out of bounds?
stackoverflow.com
351
How can I generate Javadoc comments in Eclipse?
stackoverflow.com
347
What does “opt” mean (as in the “opt” directory)? Is it an abbreviation?
stackoverflow.com
317
What is the difference between a mutable and immutable string in C#?
stackoverflow.com
313
Convert ArrayList<String> to String[] array
stackoverflow.com
283
Trim a string based on the string length
stackoverflow.com
280
Getting the IP address of the current machine using Java
stackoverflow.com
277
The difference between the Runnable and Callable interfaces in Java
stackoverflow.com
261
What is x after “x = x++”?
stackoverflow.com
245
Why is (a*b != 0) faster than (a != 0 && b != 0) in Java?
stackoverflow.com
243
What is the difference between connection and read timeout for sockets?
stackoverflow.com
237
How to remove line breaks from a file in Java?
stackoverflow.com
206
Is it possible in Java to catch two exceptions in the same catch block?
stackoverflow.com
203
Byte[] to InputStream or OutputStream
stackoverflow.com
195
What's the difference between ZonedDateTime and OffsetDateTime?
stackoverflow.com
189
Is it good practice to make the constructor throw an exception?
stackoverflow.com
187
Is it safe to use Project Lombok?
stackoverflow.com
176
How do operating systems… run… without having an OS to run in?
softwareengineering.stackexchange.com
173
Unable to install Maven on Windows: “JAVA_HOME is set to an invalid directory”
stackoverflow.com
168
Use of Java's Collections.singletonList()?
stackoverflow.com
159
Why is creating a Thread said to be expensive?
stackoverflow.com
159
Java switch statement: Constant expression required, but it IS constant
stackoverflow.com
158
What are Transient and Volatile Modifiers?
stackoverflow.com
157
When does static class initialization happen?
stackoverflow.com
156
Copying sets Java
stackoverflow.com
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