If you’re beginner check this : String s1=” read the documentation for the methods of String”; //your string char ch=s1.charAt(s1.indexOf(‘A’)); //first appearance of character A int count = 0; for(int i=0;i<s1.length();i++) { if(s1.charAt(i)==’A’){ //if character at index i equals to ‘A’ System.out.println(“number of A:==”+ch); count++; //increment count } } System.out.println(“Total count of A:==”+count); If you’re … Read more
You can use setRepeating(..) – which is described in detail here. If you want to repeat the alarm in an interval that is not provided in the available constants just calculate the correct amount of milliseconds (e.g. for a week: 1000 * 60 * 60 * 24 * 7 (1 sec * 60 -> 1 … Read more
You can use String#matches() to check if a name begins with any of the special characters on your blacklist: if (name.matches(“(?:!|@|#|\\$|%|\\^|&|\\*|\\(|\\)|_|\\+|\\?|>|<).*”)) { System.out.println(“Enter valid name”); } Another way: String specialChars = “!@#$%^&*()_+?><“; if (specialChars.indexOf(name.charAt(0)) != -1) { System.out.println(“Enter valid name”); } solved If the first name, last name and the nick name starts with the … Read more
Getting EACCES (Permission denied) when tried to modify the file /sys/class/power_supply/battery/capacity in android device solved Getting EACCES (Permission denied) when tried to modify the file /sys/class/power_supply/battery/capacity in android device
It’s a very subjective question, but Unity sounds like what you’re looking for. It has support for Boo as a language (although it’s not at the forefront of Unity usage). Boo isn’t Python, but is similar enough for you to carry on your knowledge of Python with you, and Unity is a solid engine for … Read more
After stripping out everything besides the control statements, this is what we’re left with: public void onClick(View v) { if (id == R.id.button6) { //snip } else if (id == R.id.button1) { if (doubler == 0) { if (value > 1000) { //snip } else if (value < 1000) { //snip } } } if … Read more
you can use SVN or GIT, they are softwares for versioning, all of you could work on the same file and in the end all of you commit that file, and update it again so everyone have the most recent copy. hope this helps solved How to create and develope android application with my team? … Read more
Try this below code. Delete ArrayAdapter<String> myAdapter = (ArrayAdapter<String>)getListView().getAdapter(); myAdapter.remove(myAdapter.getItem(pos)); myAdapter.notifyDataSetChanged(); Refresh the List, call that Activity once again Using Intent solved How to update and delete custom list view items [closed]
try this way. edittext.addTextChangedListener(new TextWatcher() { public void afterTextChanged(Editable s) { } public void beforeTextChanged(CharSequence s, int start, int count, int after) {} public void onTextChanged(CharSequence s, int start, int before, int count) { String result = s.toString().replaceAll(” “, “#”); if (!s.toString().equals(result)) { ed.setText(result); ed.setSelection(result.length()); } } }); 1 solved when user type abc xyz … Read more
Keep a local variable and set it to the appropriate button’s id whenever a button is pressed. int lastPressedButton; … @Override public void onClick(View v) { lastPressedButton = v.getId(); switch(v.getId()) { // normal button handling code } } 0 solved How to know which Button was pressed recently among all the Buttons in an activity?
You can inflate its views by doing: LayoutInflater inflater = (LayoutInflater)context.getSystemService (Context.LAYOUT_INFLATER_SERVICE); inflater.inflate(…); Alternatively, you can simply create a view like final LinearLayout l = […] //add stuff l.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); //etc… solved XML to Java code in Android [closed]
Looking at your code it seems that you made a typo here: TextView DialogText=(TextView) findViewById(R.id.imageViewDialog); It should be TextView DialogText=(TextView) findViewById(R.id.textViewDialog); or whatever the name of the id for this TextView is. Apart from that, you need to learn to read the messages from the LogCat as they are often very informative. Cleary it says: … Read more
Please try this one Object value = json.get(“next”); if(value instanceof Boolean){ boolean booValue = json.getBoolean(“next”); }else { String str = json.getString(“next”); } 1 solved How to know whether my json value is boolean or String value contain
Try this code, final Handler h = new Handler(); h.post(new Runnable() { @Override public void run() { long millis = (long) currentTime(); dateAndTime.setText(getDate(millis, “dd/MM/yyyy hh:mm:ss.SSS”)); h.postDelayed(this, 1000); } }); 4 solved android update textview for every 30 seconds [duplicate]
Use a RelativeLayout. onClick, loop over the existing imageview(s) and change the layoutparameters to move up the screen; otherwise, create a new imageview, set its src and initial position, and add it to your relativelayout. (If there is only ever one imageview at a time, you don’t need to create a new one, just move … Read more