Date objects don’t have a format. Formatting can only be applied when you display them as a strings. A Date object simply stores all the info about the date (day, month, year, time, etc). When displaying that data, it is displayed as a string, and that is when it makes sense to arrange the data … Read more
It’s Marker Interface and just like an normal interface. with no methods. public class Paging implements Serializable{ } And somewhere else Runtime realizes objects like if (Paging instanceof Serializable) { // Hey this object is able to serialize..lets go furthur } else { // Dear programmer , your class not implemented Serializable } solved Serilization … Read more
You just need to worry about two simple rules : If we send the contestant that takes the least amount of time to swim first, we are reducing the finish time between contestants. What if two contestants have the same swim time? In this case, the contestants who have a higher total running + cycling … Read more
There isn’t any preventive measure in your code that enables the code not to count same chracter in the feature steps. Here I just modified your code to make it work correctly. But you can compare it with other version I provided to prevent double counting. public class Main { public static void solution(String s) … Read more
Binary XML file line #8: Error inflating class android.support.v7.app.RecycleListView Caused by: java.lang.ClassNotFoundException: Didn’t find class “android.support.v7.app.RecycleListView Your layout file is faulty and you should replace the faulty reference to android.support.v7.app.RecycleListView with android.support.v7.widget.RecyclerView 2 solved I created a recycler view nd its not working please suggest some solution
The Component you are asking about is called ViewPager . See the working example of ViewPager . There are many libraries made for App Introduction , link of one of them is below , Please check . https://github.com/HeinrichReimer/material-intro?utm_source=android-arsenal.com&utm_medium=referral&utm_campaign=3206 solved What is the name of this component?
First of all, if you are gonna retain more than one instance of the class then you are actually not using Singleton pattern (as pointed out by ANS). Anyway your question sounds like you need multiple yet limited number of instances of a class. In that case, Object Pool pattern can be useful for you. … Read more
You want intersection of the list while saving of first list type. Get the common field values in the Set. valuesToCheck=secondList.stream().map(SecondListObject::commonFiled).collect(Collectors.toList); ”’ Apply a stream on the first while filtering based on the matching common field value in the set built in the previous step. firstList.stream().filter(x->valuesToCheck.contains(x.getCommonFiled)).collect(toList) You got the gist. 1 solved Comparing two list … Read more
You have a problem in this part: if(hour.startsWith(“0”)) { tTime = hour.split(“0”); if(tTime.length > 0) hour = tTime[0]; else hour = “0”; } So if your input is “08:15”, hour value is “08”. Now when you split it using delimiter “0”, you get an array { “”, “8” }. So, now tTime[0] is “”. Use … Read more
As you can see here, the | operator has a higher precedence than the assignment operator =. Therefore, when you don’t wrap (a = false) in parentheses : if (a = false | (b = false) || (c = true) | (d = true)) is equivalent to if (a = (false | (b = false) … Read more
Yes it is. The heap is being over-allocated. The only way to solve other then increasing the heap space is to see what is using all the heap space and then trying to make sure objects can be collected that stay around longer then they are needed. If it is a file or something that … Read more
You’re setting the value of the parameter to be used in the query. The ? in the SQL represents the parameter, and here you’re giving it a value. When you call getString() later, that’s getting a value from the results of the query, which are very different from the parameters sent as part of the … Read more
You write out the commands that perform each operation one at a time, then you put them all within one method. — update to give fictional example — public void updateUserAgeByName(String name, int age) { User user = fetchUserByName(name); user.setAge(age); updateUser(user); } another example could be public void updateUserByName(String name, User newValues) { User user … Read more
if c=12 then c++ + ++c is 12 + 14 = 26, so 26 will be assigned to c. First the c++ is evaluated to 12 and then 13 is assigned to c. Then ++c first assigns 13+1 is 14 to c and results in 14. So we have 12 + 14 which is the … Read more
Does the following code have a different result: if(array==null || array.length == 0) System.out.println(“NO SOLUTION”); double s=0; for(int x: array) s+=x; int avg = (int)(s/array.length); if(avg == s/array.length) System.out.println(avg); else System.out.println(“NO SOLUTION”); 1 solved What test cases might give the wrong result for the following code?