you should use this class : net.sf.json.JSONObject , check which one you’re using, this might be your problem 0 solved When iam converting a string to JSONObject,Iam getting this error “The constructor JSONObject(String) is undefined”
I’m not sure why you’re defining a local variable b in your start() method since you’ve already defined one as a class member. The one you created in start() will be lost as soon as start() returns. Also: the member object you create will be instantiated long before onCreate() is called. Is there enough context … Read more
No, both examples are not equal. In example one the variable is initialized at construction time and class1 cannot be instantiated without it. In example 2, the variable is not initialized and is given the default value of null until it is set at some later time setVar1 No, you will not get an exception. … Read more
Don’t use StringTokenizer: StringTokenizer is a legacy class that is retained for compatibility reasons although its use is discouraged in new code. It is recommended that anyone seeking this functionality use the split method of String or the java.util.regex package instead. You can use split() if you split on 2 or more spaces: split(” {2,}”) … Read more
When you use a PreparedStatement you need to replace each “?” with a valid value before doing the actual query. So the basics of the code would be: String sql = “Select * from SomeTable where SomeColumn = ?”; PreparedStatement stmt = connection.prepareStatement(sql); stmt.setString(1, someColumnVariable); ResultSet rs = stmt.executeQuery(); solved I want to search for … Read more
I assume you are starting the program from the Builds directory – not the project root. Therefore the path src\data\pokemon.csv can’t be resolved. You have to either copy the jar to the project root or start the program from the project root dir with java -jar Builds\v1.0.jar 2 solved Project runs in eclipse but not … Read more
Assuming you know how to sort a 1d array (otherwise look it up), this is fairly similar. Instead of swapping two chars (when you use bubble sort or any other sorting algorithm based on swapping items), you swap the two complete rows. So you get something like this (for bubble sort): for char1 of each_last_row_char … Read more
Methods: public static int getMax(int[] a) and public static int getMin(int[] a) have int[] as their input parameter, but they are later called without any parameters: arr.getMax(); and arr.getMin();. This is the cause of the error you are getting from the compiler. EDIT: You probably want to modify your methods not to be static and … Read more
In .NET you could do use the AddMonths method: DateTime date = new DateTime(2013, 5, 19); DateTime newDate = date.AddMonths(14); As far as parsing a date from a string using a specified format you could use the TryParseExact method: string dateStr = “19/05/2013”; DateTime date; if (DateTime.TryParseExact(dateStr, “dd/MM/yyyy”, CultureInfo.InvariantCulture, DateTimeStyles.None, out date)) { // successfully … Read more
I’m not sure what you are going for exactly but this is your problem in your loop t == 5 it should be something like for(int t = 1; t <= 5; t = t+1) { t is never 5 here so it will never iterate. Also, you can simplify the last part so it … Read more
You can use Pattern and Matcher: String input = “Java: split text [duplicate],[description blablablablablabla]”; Pattern pattern = Pattern.compile(“\\[(.*?)\\]”); Matcher matcher = pattern.matcher(input); ArrayList<String> stringList = new ArrayList<String>(); while(matcher.find()) { stringList.add(matcher.group(1)); } //If you just need the results to be stored in an array of Strings anyway. String[] stringArray = stringList.toArray(new String[stringList.size()]); 1 solved Java: split … Read more
You try to add this listener to the onCreate event: myCustomView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { @Override public void onGlobalLayout() { myCustomView.getViewTreeObserver().removeOnGlobalLayoutListener(this); do_your_logic_to_save_bitmap_from_view; } }); addOnGlobalLayoutListener will register a callback to be invoked when the global layout state or the visibility of views within the view tree changes. For example when the view is rendered completely. 3 solved … Read more
I’m going to demonstrate required steps to cook a regex for word help but the requirements are not clear, rules are not strict hence some drawbacks are usual. \bh+[a-z&&[^e]]*e+[a-z&&[^le]]*l+[a-z&&[^ p l e ]]*p+\b ^ ^^ ^ ^ ^ | || | |–|-> [#2] | || |-> [#1] | ||-> Previous char(s) [#2] | |-> [#1] … Read more
You problem is solved in Lollipop and above, if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { Window window = getWindow(); window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS); window.setNavigationBarColor(Color.YOUR_COLOR); } 1 solved Change Galaxy S8 Navigation Bar Color Programmatically
Just tried to guess your code. Please find bellow explanation public class Main { String str = null; public static void main(String[] args) { Main m1 = new Main(); m1.setTheValueHere(); m1.getTheValueHere(“called by m1”); Main m2 = new Main(); m2.getTheValueHere(“called by m2”); } protected void setTheValueHere(){ str = “hello”; } public void getTheValueHere(String objName) { System.out.println(objName … Read more