DetailActivity is just that, an Activity. You cannot access methods in it as you would an object. The only way to do so is to make that method static and do DetailActivity.showHtml() but this is not recommended. The other problem is that you are not creating that Activity properly. You need to start it as … Read more
Add an actionlistener to your JButton and it will tell you when its been clicked like so: someButton.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { //the button was pressed and do your stuff here. } } 3 solved Mouse event handling in Swing
I am supposing your csv will be like this: user1, hash_pass_u1 user2, hash_pass_u2 user3, hash_pass_u3 … Just one note before the solution. You are importing the CSV module of Python and you did not use it in your code, such a silly import, just use it. The solution is simple import csv file=”yourcsv.csv” found = … Read more
When launching the detail activity you can receive information with the intent so that you are able to display the item accordingly. from the list activity : Intent intent = new Intent(getApplicationContext(), DetailActivity.class); intent.putExtra(“OBJ_ID”, drugObj.id); startActivity(intent); from the detail activity in the onCreate method : int drugID = getIntent().getIntExtra(“OBJ_ID”, 0); Please note the above is … Read more
‘Post_held=”+post_held+”‘where should be Post_held='”+post_held+”‘ where. On a different note: DO NOT build a SQL statement using string concatenation like that, or you leave yourself open to SQL Injection attacks, which will allow attackers to delete/steal all you data. Use a PreparedStatement with parameter markers (?) and set the values on the statement object. solved com … Read more
Enter the first string in the variable n. Enter the second string in the variable m. Compare the two string lengths : *if they’re different , return false. Scan the two vector , character per character : *if there’s one difference, return false. Return success. solved Given two strings of length, test if the two … Read more
I think you are a beginner. So i will help you to get stand. Try this code. class InputTest { public static void main(String[] args) { System.out.print(“Enter size of array: “); Scanner scanner = new Scanner(System.in); int numberOfArray = scanner.nextInt(); Integer[] input = new Integer[numberOfArray]; for (int i = 0; i < numberOfArray; i++) { … Read more
In your search.php, add this code, above your existing logic ( in fact in an if else ). <?php if(!empty($_POST[‘search_term’])){ //Your Existing Logic } else{ echo ‘No results/You should enter a keyword’; } ?> 3 solved How to stop the search field giving results even if the search field is empty?
All standard exceptions derive from std::exception, so catch that instead: try { // throw exception here } catch (const std::exception &e) { // handle exception here } solved How to catch any c++ standard exception?
boolean nice = rand.nextBoolean(); is declaring and assigning a local variable. You aren’t assigning the field, so it will always have its default value, false, when you access it with the getter. Drop the boolean. 1 solved Random boolean is always false [closed]
You can use below Regex to remove all hyphens and all other non numeric characters from phone number string pattern = @”\b([\-]?\d[\-]?){11}\b”; Regex rgx = new Regex(pattern); var sentence = “This is phone number 0341-2239548 and 021-34223311″; var matches = rgx.Matches(sentence); foreach (Match match in matches) { string replacedValue = Regex.Replace(match.Value, @”[^0-9]”, “”); sentence = … Read more
You can use isalpha() to see if a character is a letter or not. And you can cut the number of case statements you use by converting the character into lowercase using tolower(), which makes the code simpler and less likely you’d miss something. if(isalpha(ch)) { switch(tolower(ch)) { case ‘a’: case ‘e’: case ‘i’: case … Read more
You could try chunking every 25 lines, then write them each out to separate files: def chunks(l, n): “””Chunks iterable into n sized chunks””” for i in range(0, len(l), n): yield l[i:i + n] # Collect all lines, without loading whole file into memory lines = [] with open(‘FileA.txt’) as main_file: for line in main_file: … Read more
If you mean why can’t you invoke the getArea() and getPerimeter() methods, it is because they are abstract. You cannot invoke an abstract method. An abstract method must have an implementation in a concrete class. Also, you cannot instantiate an interface or an abstract class. You can only instantiate concrete classes (and they may implement … Read more
Install epel repository from fedora Download it from http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm # rpm -ivh epel-release-7-5.noarch.rpm # yum install ntfs-3g ntfsprogs ntfsprogs-gnomevfs Done solved Unable to mount usb hard disk in rhel 7.1 [closed]