System.out.println - cannot resolve symbol


Are you using any IDE or writing in a notepad and then compiling? If using IDE, check if JRE library is there in build path. If using plain editor, you may need to setup CLASSPATH environment variable with java library.

At least <java_home>jrelib t.jar is important one.



Cannot find symbol println

You concatenate Strings with + not ,

System.out.println("You have ", numGuards, " guards");

Should become

System.out.println("You have " + numGuards + " guards");

System.out.println - cannot resolve symbol

Are you using any IDE or writing in a notepad and then compiling? If using IDE, check if JRE library is there in build path. If using plain editor, you may need to setup CLASSPATH environment variable with java library.

At least <java_home>jrelib t.jar is important one.


Why my program runs fast when I make a call to System.nanoTime() outside the System.out.println statement?

The second one creates a new StringBuilder and appends a String to it before taking the timings. The first one takes the timing before doing this extra work.

The second one is equivalent to

System.out.println(new StringBuilder().append("Time: ")
                   .append(System.nanoTime() - t).toString());

or

StringBuildler sb = new StringBuilder().append("Time: ");
// included in timing
long time = System.nanoTime() - t;
System.out.println(sb.append(time).toString());

BTW Just performing an output to the console can disturb very short tasks and make them slower. I suggest you run the test many times, ignore the first 20K as warm up and print a summary of the results at the end.


System.out.println(); and System.err.println(); printing interchangeably

Those are two different output streams, the order in which they are invoked is not the only thing that matters. They might flush their contents towards the console at a different time.

Edit: after a bit more digging this answer indicates that it might be an (unresolved) eclipse bug as well. It's been open for 10 years, don't get your hopes up on a fix anytime soon.


dyld: lazy symbol binding failed: can't resolve symbol

That error message indicates that you are linking against a Shared Library (dylib) which is not available in the library path at run time when you are executing it.

If you have installed the framework in one of the standard locations (such as /Library/Frameworks) on your original build and in the same place when you checked it your and rebuilt, then you should be OK. However, there are some complexities to framework linking that can cause trouble if you are not careful, especially if you use embedded frameworks. It looks like you are not building an application, so I assume you're not embedding the framework.

Compare the installation locations of your frameworks on both the new and old computer and if they are not the same, that's likely your problem.

If things look like they are in the same place, you may need to check the DYLD_LIBRARY_PATH (good stack exchange question about dyld).


Apache Storm-Starter: Intellij IDEA: Cannot resolve symbol 'LocalCluster'; Cannot resolve symbol 'LocalDPRC'

I had similar issue and I finally resolved by realizing that you need to do

mvn clean install -DskipTests=true

at the top storm directory to build your storm first.



- Technology - Languages
+ Webmasters
+ Development
+ Development Tools
+ Internet
+ Mobile Programming
+ Linux
+ Unix
+ Apple
+ Ubuntu
+ Mobile & Tablets
+ Databases
+ Android
+ Network & Servers
+ Operating Systems
+ Coding
+ Design Software
+ Web Development
+ Game Development
+ Access
+ Excel
+ Web Design
+ Web Hosting
+ Web Site Reviews
+ Domain Name
+ Information Security
+ Software
+ Computers
+ Electronics
+ Hardware
+ Windows
+ PHP
+ ASP/ASP.Net
+ C/C++/C#
+ VB/VB.Net
+ JAVA
+ Javascript
+ Programming
Privacy Policy - Copyrights Notice - Feedback - Report Violation 2018 © BigHow