Introduction If you are looking for a way to get the Saturday date from a Calendar in Java for a specified week, then you have come to the right place. In this article, we will discuss how to use the Calendar class in Java to get the Saturday date for a specified week. We will … Read more
Introduction If you are looking for a way to get substring items within an ArrayList in Java, then you have come to the right place. In this article, we will discuss how to get substring items within an ArrayList in Java. We will look at different methods of doing this, such as using the subList() … Read more
Introduction If you are a developer, you may be wondering how to check if a user has installed an app on their device. This is an important question to consider, as it can help you determine the success of your app and how to best reach your users. In this article, we will discuss how … Read more
Introduction A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. Determining if a number is prime is an important problem in mathematics, and there are several methods for solving it. In this article, we will discuss some of the most common methods for determining … Read more
You can iterate the digits by using the modulo (%) and division (/) operators: public static int countCommonDigits(int a, int b) { int count = 0; while (a > 0 && b >0) { // Get the right most digits of each number int digitA = a % 10; int digitB = b % 10; … Read more
Something like this… List<String> result = Stream.of(“A”, “A”, “BB”, “C”, “BB”, “D”) .collect(Collectors.groupingBy( Function.identity(), Collectors.counting())) .entrySet() .stream() .filter(x -> x.getValue() == 1L) .map(Entry::getKey).collect(Collectors.toList()); System.out.println(result); // [C, D] 2 solved return the list with strings with single occurrence [closed]
Exception line (java.lang.ArrayIndexOutOfBoundsException: length=5; index=5) clearly mentions that you are Trying to get index=5but the length of the dato is 5(length=5). So, use only proper index i.e. index 0 to 4. OR Make sure that enough indexes exists to access. Note: You have used dato.split(“, “);. Try with dato.split(“,”);. May be the problem is with … Read more
if you’re only comparing a few values then you might as well proceed with the current approach as there is nothing in place to make it shorter. However, if you’re repeating your self many times, then you can create a helper function to do the work for you. i.e static boolean anyMatch(int comparisonValue, int… elements){ … Read more
How about String video_link=”http://vimeo.com/81988791″ int number = Integer.parseInt(video_link.substring(“http://vimeo.com/”.length())); solved how to get number portion from a string in java? [closed]
Change s3 == s1 to s3.equals(s1). The == operator or will check if they’re both the same object, rather than what their string value is. solved Why I new the object not equal to the String? [duplicate]
Want to display Image, try something like this: import java.awt.Dimension; import java.awt.Graphics; import java.awt.Image; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.util.logging.Level; import java.util.logging.Logger; import javax.imageio.ImageIO; import javax.swing.*; public class ImagePanel extends JPanel{ private BufferedImage bi; public ImagePanel() { try { bi = ImageIO.read(new File(“Your Image Path”)); } catch (IOException ex) { Logger.getLogger(ImagePanel.class.getName()).log(Level.SEVERE, null, ex); … Read more
Look at set1 and compare it to set2 notice that in the second case you specifying exactly what kind of objects set2 will hold but in the set1 you don’t so the compiler has no idea that you using your abc class (By the way class name should start with a capital). Here is the … Read more
I think so is easy int [] tabMaxMin = {1, 4, 8, -4, 11, 0}; int max = tabMaxMin[0]; int min = tabMaxMin[0]; for (int i=1; i < tabMaxMin.length; i++) { if(min >= tabMaxMin[i]) min = tabMaxMin[i]; if(max <= tabMaxMin[i]) max = tabMaxMin[i]; } System.out.println(“MAX=” + max); System.out.println(“MIN=” + min); } 0 solved I want … Read more
It should be if (age == 21) { System.out.print(“Legal Drinking age”); } = is used for assignments 0 solved if else to test legal drinking age
A comparison of Strings in Java is done character by character. Each character has a specific ranking to it based on where it appears in the Unicode character table (for this case, we can use ASCII, since it’s English). “1” would be considered less than “7”, as well as “T”. To invoke (place this inside … Read more