Error Description Actual Reason Your code trying to create a substring with though your actual response string length is = 28, so String length is not long enough to create a substring of 500 characters. Solutions : Validate length using ternary operator ?:mTextView.setText(“Response is: “+ ((response.length()>499) ? response.substring(0,500) : “length is too short”)); Note : Ternary … Read more
Here’s a good example. I use it to rename the variable because the JSON is coming from a .Net environment where properties start with an upper-case letter. This correctly parses to/from the JSON:
I’m getting a ConnectException: Connection timed out with some frequency from my code. The URL I am trying to hit is up. The same code works for some users, but not others. It seems like once one user starts to get this exception they continue to get the exception. Here is the stack trace: Here is a … Read more
To define Global Variable you can make use of static Keyword now you can access a and b from anywhere by calling
There are several ways to simulate optional parameters in Java: Method overloading.void foo(String a, Integer b) { //… }void foo(String a) { foo(a, 0); // here, 0 is a default value for b }foo(“a”, 2); foo(“a”); One of the limitations of this approach is that it doesn’t work if you have two optional parameters of … Read more
Pictures: Hello.java Hello.html Error What may the problem be?
I had the same issue with WebSphere 6.1. As Ceki pointed out, there were tons of jars that WebSphere was using and one of them was pointing to an older version of slf4j. The No-Op fallback happens only with slf4j -1.6+ so anything older than that will throw an exception and halts your deployment. There … Read more
Iterate through the entrySet() like so: Read more about Map.
I have a project created by Maven integration in Eclipse. All work fine, but in the work space in all JSP files have this: To the first string where place: When I create a basic dynamic web project and JSP in – all is fine, no errors.
On a Java OOP project I got three errors on my constructor: .\Voter.java:14: error: invalid method declaration; return type required .\Candidates.java:7: error: invalid method declaration; return type required .\Candidates.java:14: error: invalid method declaration; return type required codes for constructor: i declared my constructors like this: Anything I missed?