[Solved] if statement in Eclipse

Some improvements: You shouldn’t compare NAME.equals(“ABDULHAKEEM” ) because NAME might be null, which would throw an exception. You don’t need to do result.SSID.toString(). result.SSID is already a String. Use else ifs to improve the speed (don’t need to check another 2 times if the first time was a match). float s1=0; float d1=0; float s2=0; … Read more

[Solved] Java adding methods

The program you wrote have some bugs. You are not assigning choice variable with the return value from readChoice() method. choice = readChoice(); instead of readChoice(); Also change checkChoice() method as follows to make sure it shows message for all invalid choices like 0 public static int checkChoice(int choice) { Scanner sc = new Scanner(System.in); … Read more

[Solved] Suggest data-structure for this use case [closed]

Since you want the thread to wait for an answer, I’d suggest creating a question object that has the question text, can store the answer, and has a CountDownLatch for tracking when the answer is available. public final class Question { private final String question; private String answer; private CountDownLatch latch = new CountDownLatch(1); public … Read more

[Solved] Android SQlite exceptions which cause the app to crash [closed]

Check this error here. Process: com.example.rockodile.contactsappliaction, PID: 5549 java.lang.IllegalStateException: Couldn’t read row 0, col -1 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it. at android.database.CursorWindow.nativeGetString(Native Method) at android.database.CursorWindow.getString(CursorWindow.java:438) at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:51) at com.example.rockodile.contactsappliaction.UserSQL.getContactList(UserSQL.java:105) at com.example.rockodile.contactsappliaction.MainActivity.onClick(MainActivity.java:52) Update. public ArrayList<HashMap<String, String>> getContactList() { //Open connection to read only SQLiteDatabase db = dbHelper.getReadableDatabase(); … Read more

[Solved] wrong output of this Dictionary [duplicate]

You put only one object into the map. StaffMember staff = new StaffMember(); String line = null; while ((line = br.readLine()) != null) { You need many objects String line = null; while ((line = br.readLine()) != null) { StaffMember staff = new StaffMember(); // Move into loop 2 solved wrong output of this Dictionary … Read more

[Solved] Java / Javascript : File Comparison line by line while ignoring certain section

java.lang.StringIndexOutOfBoundsException comes from this code: for (int i = 0; i < strLine1.length(); i++) { if (strLine1.charAt(i) != strLine2.charAt(i)) { System.out.println(“char not same at ” + i); } } When you scroll larger String strLine to an index, that is greater than the length of strLine2 (second file is smaller than the first) you get … Read more

[Solved] 2D Game engine for android [closed]

I only used one of them and below its specialities(supports android) as I remember. Others which I dont know about: Jogre –>I dont know if this supports Android, but trying does not hurt env3D –> Supports android. jake2 –>I dont know if this supports Android jpct —> Supports for android. LWJGL —>a good base You … Read more

[Solved] Why sin function in programming language returning strange sin value unlike calculators [closed]

The reason you’re getting different results is because the calculator is giving you the sin of 27.5 degrees, whereas Google is giving you the sin of 27.5 radians (which is equivalent to 1576 degrees). To get the same result you’ll either have to change the calculator from DEG mode to RAD mode, or convince google … Read more