I faced the same issue in past after upgrading Service pack it was resolved. But also suggest you to look at the below. Check your network settings (firewall, proxy, antivirus software) to find the cause of “Permission denied: connect” Find out it is windows 7’s problem, upgrade to SP1 the problem solved. Seems when running … Read more
// here is int’s (all other lines with int’s must be also corrected) numbers.setText(loadG2a+loadG2b+loadG2c+loadG2d); // but must be String =) numbers.setText(loadG2a+loadG2b+loadG2c+loadG2d+””); 1 solved What is causing my app to crash in this program? – Android Studio
You may find this approach verbose and overengineered. Yes, it’s. Though, I like the way the grading system is defined. class Test { public static void main(String[] args) { Map<String, Predicate<Integer>> gradingSystem = new HashMap<>(); gradingSystem.put(“A”, mark -> mark >= 90 && mark <= 100); gradingSystem.put(“B”, mark -> mark >= 80 && mark < 90); … Read more
That is just some text that passed to another activity….it’s just an example In the tutorial they want to show that how to send an extra message to another activity. You can do it by put an extra message with intent.putExtra(EXTRA_MESSAGE, message); and then in another activity, you can catch it with String message = … Read more
In a very basic approach, create an int array containing the number of days in each month. final int[] daysInMonth = new int[] { 31, 28, 31, 30, … }; Then check if it is a leap year, do: daysInMonth[1]++; // add an extra day in February Create an int variable (called remainingDays) that initially … Read more
This is the C/C++/C#/Java/Javascript/Perl/PHP/Pike bitwise XOR assignment operator. An XOR (exclusive or) conditional statement evaluates to true if and only if one of the two operands involved is true. Example: 0 ^ 0 = false 1 ^ 0 = true 0 ^ 1 = true 1 ^ 1 = false //Regular OR would evaluate this … Read more
I think SharedPreferences is the better idea and the data is more secure than a file. Simply copy paste this to your onCreate(). SharedPreferences sharedPref = getActivity().getPreferences(Context.MODE_PRIVATE); Boolean expired= sharedPref.getBoolean(“expired”, false); if (expired){ throw new RuntimeException(“Custom crash”); } //Make it expierd SharedPreferences pref=PreferenceManager.getDefaultSharedPreferences(this); SharedPreferences.Editor editor = pref.edit(); editor.putBoolean(“expired”, true); editor.commit(); 1 solved How do I … Read more
If you expect that int intUnderscore = 1_23_456; System.out.println(“intUnderscore: ” + intUnderscore); prints intUnderscore: 1_23_456 you misunderstod the purpose of the underscore. It is just syntactic sugare meant to make source code easier to read. solved Underscore not visible in Java numbers [closed]
You can do it with the help of a loop e.g. import java.util.Arrays; public class Main { public static void main(String[] args) { String[] a = { “a”, “b”, “c” }; String[] b = { “d”, “e”, “f” }; String[] result = new String[a.length]; for (int i = 0; i < Math.min(a.length, b.length); i++) { … Read more
This should do it. Obviously you’ll need to handle exceptions: public class FileReaderTest { public static void main(String[] args) throws IOException, IllegalArgumentException, SecurityException, IllegalAccessException, InvocationTargetException, NoSuchMethodException { final FileReaderTest object = new FileReaderTest(); final BufferedReader reader = new BufferedReader(new FileReader(new File(“/path/to/file”))); for (String line = reader.readLine(); line != null; line = reader.readLine()) { object.getClass().getMethod(line).invoke(object); } … Read more
Please read your error messages more carefully. You have an autowiring problem: NoSuchBeanDefinitionException: No qualifying bean of type **’com.mthree.service.UserService’** available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} You should add an annotation to tell Spring that your bean is under its control: @Service(value = “userService”) public class UserServiceImpl implements … Read more
You’re getting an ArrayIndexOutOfBoundsException because you’re accessing the command line arguments without checking that there actually are any. You need to check whether the user provided the proper arguments, and if not, print a message how to call the executable as below public class Assignment1 { public static void main(String args[]) { if (args.length == … Read more
in your layout XML file <ProgressBar android:id=”@+id/progress_bar” android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:indeterminate=”true” android:padding=”@dimen/padding15″ android:visibility=”visible” /> Then in your Activity or Fragment’s code ProgressBar mProgressBar=(ProgressBar)findViewById(R.id.progress_bar); then you can set it’s visibility property to be invisible or visible: mProgressBar.setVisibility(View.VISIBLE); or mProgressBar.setVisibility(View.GONE); or mProgressBar.setVisibility(View.INVISIBLE); solved How to make a Progress Bar [closed]
You need to add the JButton to mainPanel instead of panel. Some duplicated lines and not necessary settings removed for (int i = 0; i < 64; i++) { label[i] = new JButton(); label[i].setBorderPainted(false); mainPanel.add(label[i]); label[i].setIcon(new ImageIcon(getClass() .getResource(“/org/me/images/O.png”))); label[i].setPreferredSize(new Dimension(50, 50)); label[i].setToolTipText(“label” + i); } 0 solved How do I get rid of the gaps … Read more
for loop can be simplifed to x= (pow(3,n)-1)/2 I have double checked this here:http://www.wolframalpha.com/input/?i=sum+pow%283%2Ci%29+for+i+from+0+to+%28n-1%29 3 solved Convert loop into mathematical equation