This could probably be shorter, but it works. public static int findMostCommonElement(int[] list) { int max = 0; for (int i : list) if (i > max) max = i; int[] newArr = new int[max]; for (int i = 0; i < max; i++) newArr[i] = 0; for (int i = 0; i < max; … Read more
I didn’t test this code but i believe it should work. int unroundedMinutes = isha_jamaat_cal.get(Calendar.MINUTE); int mod = unroundedMinutes % 5; isha_jamaat_cal.add(Calendar.MINUTE, mod < 3 ? -mod : (5-mod)); The basic idea is to check whether the current time is nearest to the next or the previous 5 minutes clock mark and adjusting the added … Read more
First, no one is supposed to give you the actual code for your homework. Here is the basic idea on how it looks like conceptually: This can be done recursively by (pseudo-code of course): String[] allCombinations(String[] input) { if (input is empty) { return [ “” ] } String[] result String[] childrenCombinations = allCombinations(input[1:]) foreach … Read more
Java passes a reference to an object in a method. You can call it a pointer if you want. Let’s say you have the object myBar in the class foo and you pass it to the change it method. It doesn’t pass the object itself it passes a reference to that object (a pointer if … Read more
double ran = Math.signum(Math.random() – 0.5); The variable ran will contain +1, -1 or sometimes 0. 10 solved What is the equivalent Java code of this MATLAB code? [closed]
The if is not in any method. It’s just lose at the class level. Put it inside the do in background or better yet its own method: private String getUrl(Double lat, Double long) { if(lat != null && lng!= null) { String URL = “http://xyz.in/api/stores/around_me.json?app_id=test&lat=” + lat + “&lng=” + lng; return URL; } else … Read more
The reason that val has changed is because in Java, “objects” are essentially pointers that point to that object in memory. In your code, you define a NEW object (and a pointer called v1 that points to it) for a Value. You then specify that you want the value to be 5. When you go … Read more
Unlike other programming languages like C++, it is not sufficient to declare a variable to have an actual object assigned to it: Display dis; // dis == null You need to instantiate an object with dis = new Display(); // dis now contains a reference to a new Display instance You can declare a variable … Read more
While building a simple application using bazel getting error Couldn’t find java at ‘/usr/lib/java/jdk1.8.0_74/bin/java’ [closed] solved While building a simple application using bazel getting error Couldn’t find java at ‘/usr/lib/java/jdk1.8.0_74/bin/java’ [closed]
Math.random() returns a double value between 0 (inclusive) and 1 (exclusive). It does not return an integer value. Therefore, when you take the number produced by Math.random() modulo 10, it returns the same double value. The final cast to int makes that value always 0. Run the following code to see for yourself: double random … Read more
There is no problem with your usage of Iterator‘s next() and remove(). Your ConcurrentModificationException is caused by adding elements to the List after creating the Iterator. You should add elements to the List before the Iterator is created. Change: Iterator<Integer> iterator = list.iterator(); Collections.addAll(list, 1, 2, 3, 4, 5); to: Collections.addAll(list, 1, 2, 3, 4, … Read more
Usually Page Replacement Algorithms have a buffer and pages to put into the buffer. Buffer size is fixed to a value say 4. Now we keep on adding pages into the buffer, If they are already in the buffer we ignore them and go for the next page to be inserted. If they are not … Read more
You can use AWT,SWT or Swing to build desktop applications. AWT and SWT are basic implementations and bit hard because of the limited GUI components. Swing is a kind of extended version of AWT but with more GUI components. Swing use almost all the AWT components in it. So It will be easy for you … Read more
Here is a solution expanding on your own code (with explanations). Please try to understand the code, before using it in your homework. public static String concateAndAppend(String data1, String data2) { char[] str1 = data1.toCharArray(); char[] str2 = data2.toCharArray(); String result = “”; //we must iterate to the length of the smaller string //if you … Read more
Example of database connection : //ENTER YOUR DATABASE CONNECTION INFO BELOW: $hostname=”localhost”; $database=”dbname”; $username=”username”; $password=”password”; //DO NOT EDIT BELOW THIS LINE $link = mysql_connect($hostname, $username, $password); mysql_select_db($database) or die(‘Could not select database’); Exemple of INSERT array in database : $json = file_get_contents(‘php://input’); $obj = json_decode($json,true); //Database Connection require_once ‘db.php’; /* insert data into DB */ … Read more