You’ll have to change the return type of your setter: public boolean setHeight(int newHeight) { if (1<=height && height<=10) { height = newHeight; return true; } else { return false; } } 4 solved Boolean in Mutator Method
I think you need some modules( you may have some of them already ). Reading packet Detecting node id( with finding patterns ) and sending the packet to a proper thread. Processing with the packet delivered In conclusion, you need three threads. One, which I call it Main thread, manages 1, 2 in the list … Read more
First off all you need a json libary for Java. So if you’re using this json libary you can do something like: JSONObject obj = new JSONObject(); obj.put(“lang”, “python”); obj.put(“file”, “class.py”); obj.toString() will return {“file”:”class.py”,”lang”:”python”} solved Dynamic JSON field create with java
nextInt() consumes the entire token 013601267, not just a single digit, which was not your plan. A much easier approach could be to consume it as a single string and then iterate over the characters: String num = s.next(); int sum = 0; for (int i = 1; i <= num.length(); ++i) { sum += … Read more
Like this. ((packetSend – packetReceive) * 100) / packetSend 0 solved Percentage from difference in 2 ints [closed]
A simple answer is “statements are not allowed in class body”. The simplest fix for you program would be creating an instance list variable like. private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter { final SayingsHolder holder = (SayingsHolder).getApplication(); ArrayList<String> sayingsList = holder.getSayingsList(); } This is just one option. You can move this holder.getSayingsList(); to a method body … Read more
You can get the result from the below code. String string = “123454466666666666666665454545454454544598989899545455454222222222222222”; int count = 0; for (int i = 0; i < string.length(); i++) { count += Integer.parseInt(String.valueOf(string.charAt(i))); } System.out.println(count); 0 solved Datatype for getting input for over 30 digits
This is how a stack works: You push elements into it like this. The freshly added elements are always “on top” since it is a Last in First Out (LIFO) structure. You can only access the top element: Then You can pop these elements, but pop always removes the top one, like this: If i … Read more
bt.setOnClickListener will register your click-listener (new View.OnClickListener() {..} on the button and thus, whenever the button is clicked, the onClick() method of your click-listener is executed. The Android docs have a more detailed explanation 2 solved Oncreate function is called once then why can the button work again and again?
Don’t create individual string array.You can use Arraylist to make a dynamic String array. ArrayList<String> images =new ArrayList<String>(); to insert values.Just use add() method. For example,You want to store iamgeUrls then : images.add(image1); images.add(image2); And to retrieve data use get() method.Example : images.get(position); //where position is the index of imageUrl you want to retrieve. 0 … Read more
This is actually quite simple, despite the convoluted solutions others have offered: Map<String, List<String>> map = placements.stream() .collect(groupingBy(Placement::getFutureLinkId, mapping(Placement::getId, toList()))); 1 solved Convert a Collection to Map using java 8 streams [closed]
The JavaDoc for String.substring() states: [throws] IndexOutOfBoundsException – if beginIndex is negative or larger than the length of this String object. Since your beginIndex is equal to the length of the string it is a valid value and substring() returns an empty string. 3 solved What will be the output of String.substring(String.length)?
String[] b = a.split(“:[^,]+(?:, *)?”); Or: String[] b = Pattern.compile(“[^, ]+(?=:)”).matcher(a).results() .map(r -> r.group()).toArray(String[]::new); 1 solved How to parse a string that contains value only needed partially to an arraylist? [closed]
From your code it seems you are switching to a frame in getIframe. But forgot to switch to default[ driver.switchTo().defaultContent();] once your opertation is done public String getIframe(String id) { String Value = “”; final List<WebElement> iframes = driver.findElements(By.tagName(“iframe”)); for (WebElement iframe : iframes) { if (iframe.getAttribute(“id”).equals(id)) { driver.switchTo().frame(id);//switch happens Value = driver.findElement(By.xpathdfdgdg”)).getText(); System.out.println(“erer” + … Read more
It just occurred to me that I used to have this sort of issue when I worked on a screen-scraping project. The key is that sometimes the downloaded HTML sources contain non-printable characters which are non-whitespace characters too. These are very difficult to copy-paste to a browser. I assume that this could happened to you. … Read more