Let’s see. Assume first time it runs, x,y is 1,1. So you add Box(1,1). Next time is run, let’s assume x,y is 2,3. So, enter for loop: i = 0: Not same x,y, so enter else, and add Box(2,3). i = 1: Same as x,y (yeah, we just added it), so enter if and remove … Read more
The second helper method isn’t necessary. Here is a shortened version. public class IntToSetNotationRecursive { private static final String openBrace = “{“; private static final String closeBrace = “}”; private static final String separator = “,”; public static void main(String[] args) { for (int i = 0; i < 6; i++) { System.out.println(i + ” … Read more
static void staircase(int n) { //int n = scanner.nextInt(); int size = n; for (int i = 0; i <= size-1; i++){ for(int j = 5; j > i; j–){ System.out.print(” “); } for(int j = 0; j <= i; j++){ System.out.print(“#”); } System.out.println(); } output would be: # ## ### #### ##### ###### solved … Read more
You can use: String result = “http://sdsadasd/time/time.jsp?tp=&a”.replaceFirst(“time\\.jsp”, “java.jsp”); Or using the good friend ApacheCommon StringUtils… String result = StringUtils.replaceOnce(“http://sdsadasd/time/time.jsp?tp=&a”, “time.jsp”, “java.jsp”); For example, you can do: public static void main(String[] args) { String result = “http://sdsadasd/time/time.jsp?tp=&a”.replaceFirst(“time\\.jsp”, “java.jsp”); System.out.println(result); } // Print: http://sdsadasd/time/java.jsp?tp=&a 4 solved Replace Exact String in Java
Try using String.split() with the delimiter :, and String.substring() on index 1 of the String[] obtained from the earlier String.split(). 2 solved How to extract some text from a string in java
See comments in the code: import java.util.Scanner; public class ParkingCharges { static Scanner input = new Scanner(System.in); static double minimum_fee = 2.0; static double maximum_fee = 10.0; static double extra_per_HourCharge = 0.50; int daily_hours; public static void main(String[] args) { Display(); //as Alexandro Sifuentes Díaz suggested double hoursParked = hoursEntered(); //change if (that runs once) … Read more
View Page flipper , with fragments and swipe event is working pretty good. Please find the open source at – http://manishkpr.webheavens.com/android-viewpager-example/ solved Android Fragmens with swipe examples [closed]
if you want to check the format, you should use regular expressions in java and check the format using str.matches(“Regex here”) (regex in java) or if your format is kind of fixed, you can just check with str.contains(“:”) to check for first format 4 solved How to check whether a date sting has a particular … Read more
This has to do with the scope of your variable: From Java Language Specification, Section 6.3: The scope of a declaration is the region of the program within which the entity declared by the declaration can be referred to using a simple name, provided it is visible. A declaration is said to be in scope … Read more
This should work. As mentioned in the comments. a is not a string but an array. So you need to iterate over it to call the split() method on it’s containing strings String s = “How are you?” String[] a = s.split(“\\s”); for(String s2 : a){ String[] a2 = s2.split(“”); // do your stuff with … Read more
Your program return the factorial when m = 1. Take this example: (m=1, n=4) 4 != 1 -> so you call recursively prod(1, 3) 3 != 1 -> so you call recursively prod(1, 2) 2 != 1 -> so you call recursively prod(1, 1) 1 == 1 -> you return 1 to the last call … Read more
That is an Eclipse workspace, and workspaces are not portable. From inside Eclipse, you can use File->Import->Existing projects into workspace to import projet1, etc., into a new workspace. 1 solved How import java project (that contains two java project ) in IDE Eclipse
If you are using java-8 or later then List<Drink> list = new ArrayList<>(); list.add(new Drink(“coke”, 30)); list.add(new Drink(“fanta”, 10)); list.add(new Drink(“coke”, 5)); list.add(new Drink(“sprite”, 1)); list.add(new Drink(“coke”, 10)); Map<String, Integer> map = list.stream() .collect(Collectors.groupingBy(Drink::getName, Collectors.summingInt(Drink::getAmount))); System.out.println(map); output {sprite=1, coke=45, fanta=10} Collection<Drink> c = list.stream().collect(Collectors.groupingBy(Drink::getName, Collectors.collectingAndThen( Collectors.reducing((Drink a, Drink b) -> { a.setAmount(a.getAmount() + b.getAmount()); return … Read more
The question from your instructor seems not so great because there isn’t a single unified meaning of the { symbol in Java. In the context of a statement, the { symbol is used to denote the start of a block statement. This accounts for all the uses of { with if statements, while loops, for … Read more
Rather than using .mp3 files in your app use .ogg format audio files which are extremely small in size as compared to .mp3 files, are android compatible and have a very good quality. You can easily convert your .mp3 files to .ogg files by using any audio converter available online. 1 solved The app’s res … Read more