for (int i = 0; i < arr.length; i++) { for (int a = 0; a < book.length; a++) { if (book[a].equalsIgnoreCase(arr[i])) { //IF I TRY TO PRINT ARR[I] HERE IT HAS A VALUE bi = 1; } } if (bi != 1) { dif[l] = arr[i]; //HERE ARR[I] IS NULL System.out.println(arr[i]); l = l … Read more
you are missing number in %9.f│, so it should be like System.out.printf(“║%9.2f│%9.2f│%9.2f│%9.2f║”, p ,r ,n , p * (1 + r) * n); 2 solved formatted fixed length double in java
The same way you deal with the regular fields in class: Assumingv you have scoreStrategy and testStatistics fields: public void setScoreStrategy(IScoreStrategy iScoreStrategy) { this.scoreStrategy = scoreStrategy; } public IScoreStrategy getScoreStrategy() { return scoreStrategy; } public ITestStatistics getTestStatistics() { return testStatistics; } // … 1 solved Getters and Setters with interfaces has a parameter
Given a int suppose 5, whose binary representation is 101, we need to flip the bit which will be 010, which will be 2 [duplicate] solved Given a int suppose 5, whose binary representation is 101, we need to flip the bit which will be 010, which will be 2 [duplicate]
Your POJO class is wrong Try this public class Products_Main { @SerializedName(“current_page”) int current_page; @SerializedName(“data”) private List<Product> products; public int getCurrent_page() { return current_page; } public void setCurrent_page(int current_page) { this.current_page = current_page; } public List<Product> getProducts() { return products; } public void setProducts(List<Product> products) { this.products = products; } } and class Product { … Read more
In your manifest file you’re missing the declaration for ModuleDetailActivity. Just add this line inside your application tag to declare the activity: <activity android:name=”.ModuleDetailActivity” /> solved Get the click event from the listview and open the video [duplicate]
I assume you start your recursion (eg) like this: int[] values = new int[] {7, 9, 1, 8, 2}; IS(values, 0); If you print the output you see that your solution is reaching the solution, but it is not quite there yet. Output for this example: 7, 1, 8, 2, 9. Effectively, the only thing … Read more
I assume you want to search in your AirbnbListing list. You can use Java Stream. Use the filter method for that: List<AirbnbListing> matchingListings = listings.stream() .filter(l -> “Surrey”.equals(l.getCity())) .collect(Collectors.toList()); If you want a list of all cities, you can use the map method: List<String> matchingListings = listings.stream() .map(l -> l.getCity()) .collect(Collectors.toList()); Additionally here is an … Read more
Use the following: string.matches(“[a-zA-Z]{3}.*[0-9]{3}”); solved Checking string for 3 letters then 3 numbers
You can’t do that with local variables in Java. Local variables are variables you define inside a method. The names do not survive compilation step and are not available at runtime. You can lookup fields via reflection via Foo.class.getField or obj.getClass().getField 1 solved Get the variable by its name [duplicate]
Only the second inner loop needs to be adjusted a little bit (changes in bold): for (int k = i; k >= 1; k–) { System.out.printf(” %2d”, k * k); } The first inner loop for indention runs n-i times, so the second inner loop have to do the rest: i..1. And you have to … Read more
I want to make a Java program that takes date as input and generates another date based on number of dates I will add [duplicate] solved I want to make a Java program that takes date as input and generates another date based on number of dates I will add [duplicate]
This is how you would do it: Scanner scanner = new Scanner(System.in); String input = scanner.nextLine(); int[] array = new int[input.length()]; for(int i = 0; i < input.length(); i++){ array[i] = Integer.parseInt(Character.toString(input.charAt(i))); } String.charAt(int position) gets the Character located at a certain position in the String. Character.toString(Characters ch) converts a Character to a String. Integer.parseInt(String … Read more
Here is my attempt. public static String first_match(String[] str, String toMatch) { boolean match = false; StringBuilder output = new StringBuilder(); for (int i=0; i<str.length; i++) { if (str[i].equals(toMatch)) { match = true; } if (match){ output.append(str[i]); if (i != str.length-1) { output.append(“//”); } } } return output.toString(); } Using the above method for: String … Read more
You can of course write a method that creates JButton for you: public JButton createButton(String label, ActionListener listener, int x, int y) { JButton b = new JButton(label); name.addActionListener(listener); name.setBounds(x, y, 150, 50); return b; } and then use the method like this: button19 = createButton(“Toiletsager”, this, 100, 100); You can of course also specify … Read more