The first message, Exception in thread “main” java.lang.Error: Unresolved compilation problem:means your code does not compile. You need to identify the error and fix it. Modern IDEs e.g. Eclipse, Netbeans, etc flag compile errors. They can help you to quickly identify the source. The second error: means that the code at line 24 will never be … Read more
Because you have there. The obvious way to fix that: remove the first one. And next time: pay attention to what the compiler is trying to tell you.
After a much effort I found the issue. There was duplicate classes for CGError and CGResponse in two different libraries. So I guess the ones that were used in the compile time may differ to ones loaded in running time. Anyhow resolving the duplicate classes did the trick, and resolved this issue. PS: don’t wast … Read more
Firstly, the problem is not in the JSP or JS in your example1. The problem is in what your servlet does when it gets the “…/abcHandler.do?operation=view;” request. The problem is that you are trying to do stuff that would require a change to the HTTP response headers … after the headers have been sent. That … Read more
Look the doc for the equals() method of ArrayList Returns true if and only if the specified object is also a list, both lists have the same size, and all corresponding pairs of elements in the two lists are equal. Since there are no elements, all the conditions satisfied and hence true. If you add elements to the both list (atleast … Read more
It’s because Java’s arrays (unlike generics) contain, at runtime, information about its component type. So you must know the component type when you create the array. Since you don’t know what T is at runtime, you can’t create the array.
It is a common misconception that time (a measurable 4th dimension) is different over the world. Timestamp as a moment in time is unique. Date however is influenced how we “see” time but actually it is “time of day”. An example: two people look at the clock at the same moment. The timestamp is the same, … Read more
I don’t see an array anywhere in your code, so that’s maybe why the try block isn’t catching anything (I assume there is an array in one of the called methods?). Also, you really, really shouldn’t allow your program to read outside the bounds of an array. That’s just bad design. That being said, here … Read more
Goto Windows -> Preferences Java -> Installed JREs –> Execution Environment JavaSE1.x -> JDE 1.x If you don’t have the JDK in the Installed JRE, then Select the Installed JRE and Add the JDK installed path Let’s try to configure your run configurations to clean install Click on the small black arrow and then Run Configurations After, you just put clean install in your Maven goal, like this : And … Read more
you need to assign to an array element, but you were doing it wrong.