[Solved] Scala extends Java Interface with type
object ServiceImplementation extends MyService[String] { … } would be an example. solved Scala extends Java Interface with type
java
[Solved] Print a for-loop, Java
There are multiple things. One is that some of your code is unnecessary. public Dice(int dice1 /*, int a, int b, int c, int d, int e, int f*/ ){ this.dice1 = dice1; //this.a = a; //this.b = b; //this.c = c; //this.d = d; //this.e = e; //this.f = f; } You don’t need … Read more
[Solved] Spring MVC Service class NullPointerException [closed]
It seems EmployeeDAO is not being injected in EmployeeServiceImpl, wire EmployeeDAO using @Autowire or @Inject, Second EmployeeDAOImpl has not been declared a component (not sure if you have declared already in xml) so declare it with @Repository and also @Autowire SessionFactory. Hope this will do.. 1 solved Spring MVC Service class NullPointerException [closed]
[Solved] Java code will not compile [closed]
Maybe the right code is: public double getTotalBalance(ArrayList<BankAccount> accounts) { double sum = 0; while (accounts.size() > 0) { BankAccount account = accounts.remove(0); // Not recommended sum = sum + account.getBalance(); } return sum; } solved Java code will not compile [closed]
[Solved] Time complexity of ArrayList traversal
The size, isEmpty, get, set, iterator, and listIterator operations run in constant time. http://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html 3 solved Time complexity of ArrayList traversal
[Solved] How to add 25 years(integer variable) to a date field in java [duplicate]
It depends on the type that employee.getdate_of_birth() returns. If its a LocalDate, you can do employee.getdate_of_birth().plusYears(maxage). There are similar methods for days, months and seconds. 7 solved How to add 25 years(integer variable) to a date field in java [duplicate]
[Solved] I want to find the average in a given array, and find the closest number to that average in java
To find the average in the given array and find the number which is closest to the average, public static void main(String[] args) { int array[] = new int[] { 1, 2, 3, 4, 5, 6, 7, 8 }; int sum=0; double avg; for (int i = 0; i < array.length; i++) { sum += … Read more
[Solved] Import some code so that loop become infinite? [closed]
byte i=-1; From comments: Unsigned right-shifting, in Java, causes unary promotion to int: the byte 0xff becomes the int 0xffffffff, which is then right-shifted to 0x7fffffff and narrowed to 0xff for storage. 3 solved Import some code so that loop become infinite? [closed]
[Solved] Student Info System
In the public static String Calculate() function, you need to return return sgrade; and currently, you are not returning any object, but the method calls for the return of a string. Also, remove String sgrade = d.readLine(); from line 199 (in the addData function). This is causing problems, because you are defining a new variable … Read more
[Solved] Regex to extract a paragraph
you could use this pattern (===.*===[\s\S]*?)(?====|$)Demo 0 solved Regex to extract a paragraph
[Solved] Java Program multiples of a number
Try this implementation. for (int =642331; i > 0; –i) { values [i] = 21*i ; } 1 solved Java Program multiples of a number
[Solved] How to check a string for white spaces
You can know how many whitespaces user entered by doing this: Scanner sc = new Scanner(System.in); System.out.println(“Enter word with white-spaces:”); String str = sc.nextLine(); int totalSpace = str.split(” “).length-1; System.out.println(“total white-spaces is:”+totalSpace); Edit: You can solve you problem by changing your while condition like this: while(!(guessedSpaces.replaceAll(“\\d”,””).length()==3 && guessedSpaces.split(” “).length-1==3)){ ….. ….. System.out.println(“Enter word with white-spaces:”); … Read more
[Solved] android.os.NetworkOnMainThreadException [duplicate]
Always use AsyncTask to solve this issue. BUT, if you’re within the movie Swordfish, someone points a gun at you and say “fix it in 30 seconds”, then change your targetSdkVersion to 9 in the Android Manifest and the exception will stop. Don’t worry, it will run on devices with version higher than 9 too. … Read more
[Solved] Java Inner class – access to the variables of outer object
I assume that you want something like this: class B { private int getNum() { return myNumber; } private void setNum(int x) { myNumber = x; } } However, you cannot get access to myNumber from an instance of B, b, by doing b.myNumber. Here’s why. 4 solved Java Inner class – access to the … Read more
[Solved] Ecllipse Cannot run, JVM Terminated Exitcode-13 [duplicate]
Have a look here: Cannot run Eclipse; JVM terminated. Exit code=13 One of the answers is: I had the same error when configuring eclipse.ini to use JRE6. Turns out I caused this error by incorrectly configuring eclipse to use the 64 bit JVM while running a 32 bit version of eclipse 3.7. The correct configuration … Read more