The non-static block: Gets called every time an instance of the class is constructed. The static block only gets called once, when the class itself is initialized, no matter how many objects of that type you create. Example: This prints:
%d goes with integer in Java. Use %f instead in your printf() Another useful info. If you use %.02f then it will print only two decimal point value after the dot .
I think you forget to include the import statement for View. Add the following import in your code
They both increment the number. ++i is equivalent to i = i + 1. i++ and ++i are very similar but not exactly the same. Both increment the number, but ++i increments the number before the current expression is evaluted, whereas i++ increments the number after the expression is evaluated.
This is an annoying Eclipse Bug which seems to bite now and then. See http://dev-answers.blogspot.de/2009/06/eclipse-build-errors-javalangobject.html for a possible solution, otherwise try the following; Close the project and reopen it. Clean the project (It will rebuild the buildpath hence reconfiguring with the JDK libraries)OR Delete and Re-import the project and if necessary do the above steps again. The … Read more
You should be using variable name of the array instead of classname. I see you fixed the other firsmachine() related things
Since you are using array, the size of array is determined during compilation. Thus if your intention is to check whether current array’s index has reached the last array element, you may use the following condtion (possibly in a loop) to check whether your current array index is the last element. If it is true, … Read more
Here are some things you might have forgotten to do: Name your button (give it an id), I think they’re named button1, button2, … by default Use a capital B when declaring the button object: Button myButton = new Button(“play music”); You should make sure you have Button imported in the activity where you want … Read more
Every Java program (which is in turn, built up from one or more Java classes) requires a Main method. The purpose of this special method is to serve as an entry point to your program so that your program can be executed. More information can be found in this page. In your Pie example, what happens is that when … Read more
There is nothing like LINQ for Java. … Edit Now with Java 8 we are introduced to the Stream API, this is a similar kind of thing when dealing with collections, but it is not quite the same as Linq. If it is an ORM you are looking for, like Entity Framework, then you can try Hibernate … Read more