using java 8 fluent Date/Time classes: LocalDate inputDate = … LocalDate prevSat = inputDate.with(TemporalAdjusters.previous(DayOfWeek.SATURDAY)); 4 solved How to get Saturday date from Calendar in java for a specified week? [closed]
you have two approaches: ArrayList<String> ar = new ArrayList(); ar.add(“UserId”); //adding item to arraylist ar.add(“Directory”); ar.add(“Username”); ar.add(“PhoneNumber”); // approach one using iteration for (Iterator<String> it = ar.iterator(); it.hasNext(); ) { String f = it.next(); if (f.equals(“UserId”)) System.out.println(“UserId found”); } // approach two using a colletion which supports fetching element by key Map<String,String> myMap=new HashMap<>(); for(String … Read more
Define a method that returns true if the PackageManager can find it: Example: private boolean checkThisApp(String uri) { PackageManager myPackageManager = getPackageManager(); boolean app_installed; try { myPackageManager.getPackageInfo(uri, PackageManager.GET_ACTIVITIES); app_installed = true; } catch (PackageManager.NameNotFoundException e) { app_installed = false; } return app_installed; } and use it in the Activity/Fragment like: boolean isAppInstalled = checkThisApp(“com.facebook.katana”); 1 … Read more
You are missing a bracket. If you keep your code clean it will solve the problem. Also in your if statement you are checking if number % 2 != 0. If it does not equal to 0 then it could potentially be a prime number. So I changed it to number % 2 == 0 … Read more
Introduction Converting a String value into an integer value can be a tricky process, especially when the String value contains a unit of measurement. In this article, we will discuss how to convert a String value of 512m into an integer value of 512. We will discuss the different methods of conversion, as well as … Read more
Negate the returning value from string.equals(TestString): !string.equals(“ABC”) You better have a look at Logical Operators in Java solved How do I check in JAVA if a string is not equal to? [closed]
Does i.putExtra(String name, Serializable s) require the Activity where the Intent is sent from to implement Serializable? No, but it does mean that s cannot refer to the activity or other non-Serializable stuff or you will need to take steps to prevent the serialization from trying to serialize them (e.g., override the methods described in … Read more
Introduction A syntax error is an error in the syntax of a sequence of characters or tokens that is intended to be written in a particular programming language. In Java, a syntax error can occur when an extend keyword is used incorrectly. This article will discuss the causes of syntax errors with an extend in … Read more
the java compiler uses the message signature (name, accepted parameters and types and to some degrees the return type) not the method name to identify the method, so there is no additional strain to the compiler. If two methods achieve the same result and differ only in the parameters to complete its job, why should … Read more
Introduction This post provides a solution to the problem of extracting word pairs from a sentence. The solution involves using regular expressions to identify the word pairs and then using a loop to iterate through the sentence and extract the word pairs. The code provided is written in Python and can be easily adapted to … Read more
Introduction It is possible to store else-if statements in a XML file and call it from an activity. XML is a markup language that is used to store and transport data, and it can be used to store else-if statements. This can be done by creating a separate XML file and then calling it from … Read more
Introduction CQL (Cassandra Query Language) is a powerful query language used to interact with Apache Cassandra databases. One of the most common questions asked about CQL is whether list values are limited to 65535 bytes. This article will provide an answer to this question and explain why this limit exists. It will also discuss the … Read more
Introduction Creating a unique identifier for an object is an important task for many applications. It is important to ensure that the identifier is not random, as this can lead to confusion and errors. In this article, we will discuss how to create a unique identifier for an object that is not random. We will … Read more
Introduction When it comes to programming, it can be tempting to think that you can just copy and paste a method from one program to another and expect it to work. Unfortunately, this is not the case. There are a variety of reasons why you can’t just paste a method to make it work, and … Read more
Introduction This article provides a solution to the problem of extracting coordinates from a string. It explains the process of using regular expressions to parse the string and extract the coordinates. It also provides an example of how to use the regular expression to extract the coordinates from a given string. Finally, it provides a … Read more