so i figured out the fix to the ArrayIndexOutOfBounds errors and got it to work. The only remaining issue with the above programs is that answering question 4 (survivors by class). Here’s the code for that portion of the Titanic.java class that works: /** * Number of passengers who survived the sinking of the Titanic … Read more
To generate n numbers whose sum is m, you can think permutation of m o and n – 1 |, then count o between | and the number of o will be the numbers generated. For example, given that m = 10 and n = 4, the permutation may be o|oooo|ooo|oo Then, the results are … Read more
I work under the assumption that you have several constants like Group.GROUP_TYPE_NAME_HYDRO, and all your methods are just like the one you show us, but with different constants (I believe you should add those other methods to your question, since without them there is no visible repeated code). You have two possible scenarios (again, with … Read more
Yes, enclose them in curly braces: if ( loan < 1000 ) { f = (loan * 100 / 1000); System.out.println( “The loan amount is $” + loan ); System.out.println( “The finance charge is $” + f ); System.out.println( “The total cost is $” + (loan + f) ); } solved multiple executed statements in … Read more
Here is an example how you can do that. I hope if you are not a beginner you know about ArrayList. String word = “water”; ArrayList<String> list = new ArrayList<String>(); for (int i = 1; i <= 3; i++) { int limit = word.length() – i + 1; for (int j = 0; j < … Read more
Returning values based on a key is precisely what maps are for. To retrieve your value you can simply do: short returnVal = map.get(“String2”); solved Search without iterator for Map [closed]
This is caused by the basic fact that you have broken the paint chain. Painting in AWT/Swing is made of a chain of method calls. If you neglect to maintain this chain, you start ending up with paint artifacts, in the form you are seeing. The Graphics context is a shared resource, that is, every … Read more
Replace int with String Replace console.nextInt(); with console.next(); or console.nextLine(); and finally, use .equals() when comparing strings: UserID == EnteredUserID Should be: UserID.equals(EnteredUserID) solved Changing from integers to strings in login system [duplicate]
yshavit: What you’re trying to do isn’t easy/natural to do in Java. You’re basically trying to write an expression which creates and immediately invokes a method, basically as a way of grouping a bunch of statements together (and also providing an enclosed scope) to get a single value. It’s not an unreasonable thing, and in … Read more
Quora it J2EE – https://www.quora.com/What-is-the-best-and-quickest-way-to-learn-J2EE J2ME – https://www.quora.com/How-can-I-learn-J2ME-from-basic even you can find better articles. solved best online tutorials for J2EE and J2ME [closed]
Error message indicates that it fails for i = 5, but your loop is conditioned on the value of m, so something is wrong with your loop. Printing the value of i and m for each iteration up to i = 5 will show you the error: for (int i=0, m=2; i <= 5; i++) … Read more
drawString is a method and not a variable. So you need to pass the parameters to method instead of assigning them. You need to change this: objG.drawString=”strString 1,202,42″; to: objG.drawString(strString1,202,42); 7 solved cannot find symbol : class java.awt.graphics [duplicate]
Its an issue and it is never advisable to declare HttpServletRequest request/HttpServletResponse response as an instance variable. Actually Servlet is implementing single thread model that means only one servlet instance is created. And one thread for each request. So if their are many requests then thr must be many threads and each sharing same servlet … Read more
You could make another class in the same folder and let the first one run the second when a button is clicked. If you want any example/ more details/or anything you don’t understand, just leave a comment 2 solved Can i make more than one graphics console in Java?
The seems like the date/time wire format used in WCF. From MSDN it states: DateTime values appear as JSON strings in the form of “/Date(700000+0500)/”, where the first number (700000 in the example provided) is the number of milliseconds in the GMT time zone, regular (non-daylight savings) time since midnight, January 1, 1970. The number … Read more