[ad_1] Most of your errors are in JavaApplication62 class. Ive corrected them to get the desired output you want. There are still many problems with all your classes. I’ll Leave that up to you to rectify. Look to the comments for the corrections. /** * Created by Ninan John J P on 6/30/2016. */ import … Read more
[ad_1] You are using the class name instead of the variable name in your method. If you switch your loop to: Book found = null; for (Book book : Book.BookList) { if (selection.equals(book.getBookTitle())) { found = book; } } return found; Try this out, it should fix your problem. 3 [ad_2] solved How to return … Read more
[ad_1] You can’t parse a String which represents a Double with Integer.parseInt(). This will not work: Integer.parseInt(“3.0”); This will work: Integer.parseInt(“3”); Use this instead: new Double(“3.0”).intValue() But consider following behavior: new Double(“2.5”).intValue() will return 2. 2 [ad_2] solved Extracting a char from a string
[ad_1] The comparator seems correct. The problem seems to be in your filter clause, where you compare the event id to the device id lastDeviceEvent = deviceEvents .stream() .filter (o -> o.getDeviceId().equals(deviceId)) // Original code used getId() .sorted(comparing((DeviceEvent de) -> de.getId()).reversed()) .findFirst() .get(); [ad_2] solved Java 8 comparator not working
[ad_1] id[i] = id[id[i]]; This line is the path compression. id[i] is the parent of node i. Hence, this line re-links node i to its grand-parent. Therefore, it skips the parent. Then, the same happens to the grand-parent and so on. This flattens the tree. Here is a visualization of this step: 1 1 ^ … Read more
[ad_1] It would be O(N). The general approach to doing complexity analysis is to look for all significant constant-time executable statements or expressions (like comparisons, arithmetic operations, method calls, assignments) and work out an algebraic formula giving the number of times that they occur. Then reduce that formula to the equivalent big O complexity class. … Read more
[ad_1] Here is the code together with some comments. import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.List; //import java.util.Scanner; public class Ingredients { public static void main(String [] args)throws IOException{ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); //or Scanner scan = new Scanner(System.in); int ingredientID=0; int sumOfIngredients=0; System.out.println(“Keep selecting the ingrients that you want … Read more
[ad_1] To automate mouse clicks, holds and moves you can look into the Robot Class This is the basics of a mouse click: where x and y is the coordinate of the point on the screen in pixels where you want to click. public static void click(int x, int y) throws AWTException{ Robot bot = … Read more
[ad_1] Check pg_hba.conf for allowed hosts for connection. Under VPN you obviously have another IP then in local network. [ad_2] solved Hibernate connection with postgresql on vps not working
[ad_1] You can add objects. This is just a warning that your list is not generic. To make it generic, it should be: List<String> quotes = new ArrayList<>(); [ad_2] solved Can’t add to an ArrayList on Android Studio? [duplicate]
[ad_1] Check the spelling. In your Cloud class it is rainning But in Sky class raining [ad_2] solved unexpected output is occurred [closed]
[ad_1] may be case is not matchingyou can try 1) if (newString.matches(aVar)){ } or 2) if (newString.equalsIgnoreCase(aVar)){ } or try with newString.trim() then compare trim() method removes spaces after and before the variable like if String s=”abc “; //space at last s.trim() will remove last space and return “abc” 3 [ad_2] solved Java equals function … Read more
[ad_1] public class newCharacters { Character person1 = new Character(2, 4, 3); person1.getStat(“atk”); } This should not be in a class. This does not mean anything. A class can have bunch of instance variables and methods. Please study the basics well 😉 Put it in a main method inside the Character class public static void … Read more
[ad_1] I want to write a java code, parse the last number from the URL.Then I need to check if that number is present in a excel. else If present return [ad_2] solved I want to write a java code, parse the last number from the URL.Then I need to check if that number is … Read more
[ad_1] Hope your XML has a button like That package is not correct.. Check class and package of that button [ad_2] solved Android studio RuntimeException