How to get remaining time of the day in java?

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• Read each name in Array list to create seperate object for

  I have a file that has student names, age, and an id number. I have a student class that holds the everything above for each student object. I stored all the names, id numbers. and age separately in an array list. Now im trying to assign the info to create a student object.

  public class Student {
      private String lName;
      private int idNumber;
      private int age;
  
      public Student() {
          lName = "";
          idNumber = 0;
          age = 0;
      }
      public Student(String l, int i, int a) {
          lName = l;
          idNumber = i;
          age = a;
      }
  
      public void setName(String last) {
          lName = last;
      }
  
      public String getName() {
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      public void setIdNum(int num) {
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      public int getIdNum() {
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      public void setAge(int a) {
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      public int getAge() {
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  }
  

  My Text File looks something like this: This info is stored in parallel array lists. I don't quite get how to implement this into an object to pass it into my second contractor method.

    Josh          2134         19
    Smith         5256         21
    Rogers        9248         19
    Andrew        7742         20
  

  Here's what I've tried;

  public static void main(String[] args) {
      String file = "studentData.txt";
      Scanner reader = new Scanner(file);
  
      ArrayList<String> lastNames = lNames(file);
      ArrayList<Integer> idNumbers = idNum(file);
      ArrayList<Integer> ageList = ages(file);
  
      Scanner input = new Scanner(System.in);
  
      Student s1 = new Student();
  
      // confused about how to implement this constructor with the textile info
      for (int i = 0; i<idNumbers.size(); i++) {
          Student user = new Student(lastNames.get(i), idNumbers.get(i), ageList.get(i));
      }
  
      //user enters idNumber to display age
      System.out.println("Enter ID Number"); //exception handling to be added
      int idNum = input.nextInt();
  
      for (int i = 0; i<idNumbers.size(); i++) {
          if (idNum == idNumbers.get(i)) {
              s1.setAge(ageList.get(i));
              System.out.println(s1.getAge());
  
          }
      }
  }
  
• Using EdittextPreference for Goto search

  sorry for my poor English. I want to use EditTextPreference in my bottom nav like the pic below, ![screenshot][1]

  I have recycleview xml in my project with in many sub cardview layouts(which is scrollable) and I want to create item in the bottom nav which is called "Goto". When the "Goto" item is clicked i want it to pop-up like the screenshot. And when user enters a number(according to the cardviews i.e if the number of cardview is 40 user must enter 1-40) I want to search the cardview by its ID. Thank you and I hope u got it, If u have any questions let me know [1]: https://i.stack.imgur.com/grK8P.jpg

  My xml format look like this. As you see in the blow since the cardviews are huge in number it is not cool to scroll all the way down that is why i need Goto item in the bottom nav to search it by its ID when the user click number in the EditTextPreference as u see in the screenshot. i.e The screenshot is not from my app

  <LinearLayout>
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    <LinearLayout>
    <androidx.cardview.widget.CardView>
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   </LinearLayout>
   
    ..
    ..
  
    ..
    ..
    many more..
  
• Secure API JAX-RS API with ssl certificate over Jetty Server

  I have Jax-RS REST API with Jetty Server in my Java 8 application. I am new to securing the REST API. I have .pem file (certificate) in some path. I want to use this certificate to validate the incoming request API. Can someone point me a working example that how to validate APIs with ssl certificate? Is there any way that I can validate only single API and not all.
• Java stream min/max of separate variables

  How can I determine both the min and max of different attributes of objects in a stream?

  I've seen answers on how get min and max of the same variable. I've also seen answers on how to get min or max using a particular object attribute (e.g. maxByAttribute()). But how do I get both the min of all the "x" attributes and the max of all the "y" attributes of objects in a stream?

  Let's say I have a Java Stream<Span> with each object having a Span.getStart() and Span.getEnd() returning type long. (The units are irrelevant; it could be time or planks on a floor.) I want to get the minimum start and the maximum end, e.g. to represent the minimum span covering all the spans. Of course, I could create a loop and manually update mins and maxes, but is there a concise and efficient functional approach using Java streams?

  Note that I don't want to create intermediate spans! If you want to create some intermediate Pair<Long> instance that would work, but for my purposes the Span type is special and I can't create more of them. I just want to find the minimum start and maximum end.

  Bonus for also showing whether this is possible using the new Java 12 teeing(), but for my purposes the solution must work in Java 8+.
• Android ZoneDateTime.withHour always sets hour to 8

  So I am tring to schedule alarm at a particular time on current day using AlarmManager. To do that I am using ZoneDateTime to get current time and then updating it to the hour at which I need to set the alarm. But for some reason time.withHour is giving me 8pm or 8am no matter what hour I am passing to it. Am I doing something wrong here?

  var time = ZonedDateTime.now()    //getting current time at my timezone
  time = time.withHour(22).withMinute(8).withSecond(0)
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• Why LocalDateTime formatted with zone offset?

  Consider code:

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  The output is 2022-05-04-17 while UTC time is 2022-05-04-10. The documentation says that LocalDateTime is without zone offset - so why there is 7 hour shift? (My local time zone is +7UTC)