Time Delay float delay = 1; // seconds Timer.schedule(new Task(){ @Override public void run() { // Do your work } }, delay); The above code helps you delay the execution, and after that delay you can perform the action you want. Here, Inside the run method you can switch to any screen and ofcourse you … Read more
Try using this code instead of the way you are going : public String performPostCall(String requestURL, HashMap<String, String> postDataParams) { URL url; String response = “”; try { url = new URL(requestURL); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setReadTimeout(15000); conn.setConnectTimeout(15000); conn.setRequestMethod(“POST”); conn.setDoInput(true); conn.setDoOutput(true); OutputStream os = conn.getOutputStream(); BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, “UTF-8”)); writer.write(getPostDataString(postDataParams)); writer.flush(); … Read more
I assume, that you want to create a String object with some Java statements and execute the content as if it was a method. No, it is not possible, because that would imply, that java was an interpreted programming language. Which is not the case. You could merge the line with some sort of class … Read more
As 4castle suggest, you should really have a custom class – which looking at the properties you are interested in, you might want to name “CallLogEntry” and then have properties for this class. Here is an example of such a custom class. public class CallLogEntry { String number; String type; String date; String duration; //this … Read more
If you want to call method from listener implementation, put it out side implementation. For example, JButton btnCompute = new JButton(“Compute”); public void handleAction() { btnCompute.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { int n1 = 5; int n2 = 4; int minValue = minFunction(n1, n2); } catch (NumberFormatException ex) { } } … Read more
You have not provided the file name so you get that exception,use below code OutputStream file = new FileOutputStream(new File(“D://timer.pdf”)); See the doc here solved java.io.FileNotFoundException The system cannot find the path specified [closed]
With java 8 it is much easy. You could use something like this return string.chars().distinct().count(); solved How to find number of distinct characters in a string
Whenever people recommend using Calender on Android, I’ll come creeping out of my tiny hiding place and tell them to please consider android.text.format.Time instead because it’s simply perfect for everyday use. Much more lightweight and to the point of practical needs. Time deTime = new Time(“Europe/Berlin”); deTime.setToNow(); deTime.format(“…”); For the format, see http://linux.die.net/man/3/strftime. If I’d … Read more
Here is a simple way of doing it , add both to the same paragraph import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import com.itextpdf.text.Chunk; import com.itextpdf.text.Document; import com.itextpdf.text.DocumentException; import com.itextpdf.text.Element; import com.itextpdf.text.Paragraph; import com.itextpdf.text.pdf.PdfPTable; import com.itextpdf.text.pdf.PdfWriter; public class ItextMain { public static final String DEST = “simple_table4.pdf”; public static void main(String[] args) throws IOException, DocumentException { … Read more
To show something like “fps”: public static void main(String[] args) { while (true) callMethod(); } private static long lastTime = System.currentTimeMillis(); public static void callMethod() { long now = System.currentTimeMillis(); long last = lastTime; lastTime = now; double fps = 1000 / (double)(now – last); System.out.println(fps); } You might have to add some sleeps, because … Read more
You can add parameter Context in your new newInstance() method. For example: public static TestFragment newInstance(Context context) { if (fragment = null) { fragment = new TestFragment(); text = context.getResources().getString(R.string.voice_search_label); } return fragment; } solved How to set class property default value from R.string.xxx
Its very simple you are not calculating applesToOrder and orangesToOrder again after user input so they are taking there previous values of 0, just put these lines just above your last JOptionPane statement and see the magic. applesToOrder = applesTheyNeed – applesTheyHave; orangesToOrder = orangesTheyNeed – orangesTheyHave; 1 solved subtraction not working in java program … Read more
Java is oop but not pure because, There are Primitive data type in java like int, float etc. and they are not classes/Objects. This is only one reason that java is not Pure OOP. For example of Pure OOP . Objective C is Pure OOP language in which every thing is in the form of … Read more
Normally with recursion you’d have a function that calls itself. You don’t need recursion to reverse a string, but I suppose you could have a function that takes a string, and appends the first character of the string to the reverse of the rest. I’ll try to explain how this works without giving too much … Read more
Shift all the items from the midpoint to the right, and then add the midpoint. If i were you i’d iterate in reverse. for (int i = array.length – 1; i > midpoint; i–) { array[i] = array[i-1]; } array[midpoint] = somenumber solved Adding a number to midpoint af an array [closed]