java

[Solved] formatted fixed length double in java

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[ad_1] 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 [ad_2] solved formatted fixed length double in java

[Solved] Getters and Setters with interfaces has a parameter

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[ad_1] 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 [ad_2] solved Getters and Setters with interfaces has a parameter

[Solved] null response usin Retrofit Library in android

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[ad_1] 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

[Solved] Return specific object from an ArrayList

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[ad_1] 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 … Read more

[Solved] Get the variable by its name [duplicate]

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[ad_1] 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 [ad_2] solved Get the variable by its name [duplicate]

[Solved] triangle of square numbers java

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[ad_1] 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 … Read more

[Solved] How can user input a sequence of numbers into array// Java

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[ad_1] 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. … Read more

[Solved] Split with specials character and print string value [closed]

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[ad_1] 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: … Read more

[Solved] how do i create a method that generates a JButton? [closed]

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[ad_1] 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 … Read more