Javadoc is a kind of comment that you use in your program, to organize it, to make the program more friendly and to create a page HTML with everything you commented, like this: So, to create a javadoc, you’ll have top put /** in place of /*. There is types of commands that you need … Read more
It is asking you to handle the Exceptions that are being thrown from the methods that you have used. Surround them in a try catch block. public void method(){ try { File file = new File(“D:/projects/tFile.txt”) ; file.createNewFile(); FileOutputStream fout = new FileOutputStream(file); String s = “IPL is very entertaining tournament”; byte []b = s.getBytes(); … Read more
You want to start with the last element in the last column, and go backwards by columns first. So all you need to do is change the direction and order of your loops: for(int m=column – 1;m>=0;m–) { for(int i=row – 1;i>=0;i–) { System.out.print(charArray[i][m]) } System.out.println(); } solved How to print out a 2d array … Read more
You can use Gson but you need to add Gson to your dependencies. Parse array to a string, store it in database as a string and convert it back to double 2D array when you need the array. Gson gson = new GsonBuilder().create(); double[][] multiDoubleArray = new double[][]{{1.0, 2.0, 3.0}, {4.0, 5.0, 6.0}}; // to … Read more
i was able to solve it and here is the solution if anyone wanted it import java.util.Scanner; public class HomeWork3 { public static void main(String[] args) { String emp; double hours = 0, rate = 0, gross = 0, overtime = 0,STtax = 0, FEDtax = 0, union = 0, net = 0, Tgross = … Read more
The Java compiler thinks that it is possible that loops won’t execute (For example it nums[0] is bigger than the length) . In that case your method won’t call a return. So you have to put a return at the end. public int[] twoSum(int[] nums, int target) { for(int i=nums[0];i<nums.length;i++){ for(int x:nums){ if (x!=i & … Read more
In android studios go to res/drawable and add the photos you want to use there. Here’s how to do that : How to add an image to the “drawable” folder in Android Studio? Then you initialize the photos with : private ImageView schoolPhoto; schoolPhoto = (ImageView) findViewById(R.id.imageViewId); schoolPhoto.setImageResource(R.drawable.imageFileId); Then you can create a method with … Read more
If I understand the problem correctly, you have 6 Publication objects, and you are only seeing the values of the most recently created one. That would likely be caused because you have static class variables instead of instance variables. For example class A { static int x; // class variable int y; // instance variable … Read more
The java.util.Timer class does not have the functionality to do this using repeated tasks: You cannot configure a Timer to >>stop<< running repeated tasks at a given time The execution model for repeated tasks is “fixed-delay execution”; i.e. a new task is scheduled based on the end-point of the previous task. That results in time … Read more
The problem is that you keep searching until the end of the list. So, even if you found a matching item, the next elements may be different from the one you seek, and therefore the else would be true. What you need to do, is display the “not found” message only if no matching element … Read more
I did it!!!! public static boolean sameDashes(String a, String b){ int minlength = Math.min(a.length(), b.length()); String smallstring=””; String bigstring=””; if(a.length()== minlength){ smallstring = a; bigstring = b; } else { smallstring = b; bigstring =a; } int counter = 0; int x=0; int y=0; do{ if(smallstring.equals(bigstring)){ return true; } else if(smallstring.indexOf(‘-‘,counter)!= -1){ y++; if(bigstring.charAt(smallstring.indexOf(‘-‘,counter))== ‘-‘){ … Read more
Modifying answer now that I understand you want the resource identifier of your views: Resources res = getResources(); for (int i = 0; i < ListOfView.size(); i++){ int id = ListOfView.get(i).getId(); try { Log.i(“View “, res.getResourceName(id)); } catch (Resources.NotFoundException e) { Log.i(“Unknown id ” + id); } } 5 solved Android : How To convert … Read more
Move the while(true) loop checking for any new messages into a thread, as opposed to the action within the button which initiates the server. This will stop the frame from being updated to to unreachable code. solved Why isn’t the text in the JLabel in my application updated accordingly when I press the button?
You are changing version of xml in manifest file <?xml *version=”1.2″* encoding=”utf-8″?> part in star has problem replace version to 1.0 <?xml version=”1.0″ encoding=”utf-8″?> 1 solved Updating version in android app
The aim of the binary search is to find the index of a number inside a sorted array in a complexity log(n). FIRST STEP : initialization You start with your sorted array : {5,10,15,20,25,30,35,40,45,50} small : is the current smallest index. At the beginning it should be 0 for a zero-based array. big : is … Read more