Try this String str = “DOC_87654321 -ABC76543″; StringBuilder sb = new StringBuilder(); for (int i = 0; i < str.length(); i++) { char c = str.charAt(i); if (Character.isDigit(c)) { sb.append(c + ” “); } else { sb.append(c); } } Log.e(“DATA”,sb.toString()); 12 solved How to add spaces in between numbers contained inside a string? [closed]
What’s the meaning of && in the second call ? [c&&c] is character class with means either of the characters in it. I got true. Because c matches either of c&&c. Basically [c&] will be enough. c&&c means literally. c followed by & followed by & followed by c. Which does not match just c. … Read more
I’m not going to fix your code for you. Doing that is part of your homework. However, here are a couple of hints to start you in the right direction. Hint: Look carefully at how your Reservation constructor (tries to) initialize the object’s fields. See the problem? Hint 2: The problem that tripped you up … Read more
You start by taking the string. ansible-playbook delete.yml –extra-vars “host=5.955.595 user=root pass=anotherpw vm=myVm” Then you escape all special characters. In this case, that’s just the 2 double-quotes. ansible-playbook delete.yml –extra-vars \”host=5.955.595 user=root pass=anotherpw vm=myVm\” Then you surround that with double-quotes, to make it a Java string literal. “ansible-playbook delete.yml –extra-vars \”host=5.955.595 user=root pass=anotherpw vm=myVm\”” Then … Read more
You can do the same with Streams: Map<String, String> dic = Files.lines(Paths.get(AlphabetFile)) .map(l -> l.split(“=”)) .collect(Collectors.toMap(s -> s[0].trim(), s -> s[1].trim())); 1 solved Need java equivalent of this c# code [duplicate]
Hope this helps. Code can be improved with exceptions checks. This one is just to get started with. package com.samples; import java.util.Scanner; public class ScannerSample { public static void main(String [] args) { Scanner scanner = new Scanner(System.in); int [] mas = new int[50]; int inputInt = scanner.nextInt(); mas[0] = inputInt; int count = 1; … Read more
You use post increment and decrement operator : return number++; return number–; For example here : public static int addOne(int number) { return ++number; } The value number is incremented but only as soon as the next statement. So as you return, the same value as the parameter is returned. It is the same thing … Read more
U can use the following code……… Runtime rt = Rintime.getRuntime() ; Process p => rt.exec(“Program.exe”) ; solved How can I run a .exe from my Java Program? [duplicate]
You can try the following function. public static void parseFile() throws IOException, ParseException { BufferedReader bufferedReader = new BufferedReader(new FileReader(new File(“inputFileName.txt”))); Map<Integer, Date> integerDateMap = new HashMap<>(); // Map to put data SimpleDateFormat sdfmt2= new SimpleDateFormat(“dd/MM/yyyy”); // date format String line = null; line = bufferedReader.readLine(); // neglect first line while((line = bufferedReader.readLine())!= null){ String[] … Read more
Are you just trying to get the list from another object? CodUtility.listaCodiciTipologiaProgetto; Will return the list. 0 solved How can I access to a public final static list declared into an utility class from another class in a Java application?
3n + 5n^2 + 1 | applying Big-O notation for the single terms = O(3n) + O(5n^2) + O(1) | leaving out constant multipliers = O(n) + O(n^2) + O(1) | taking the one with the maximum power = O(n^2) => quadratic time So you are right, the first option is the quadratic one. If … Read more
JSON by default declares one top value only (and yes, this would be a valid JSON document), but there is JSON streaming that uses arbitrary techniques to concatenate multiple JSON elements into a single stream assuming that the stream consumer can parse it (read more). Gson supports a so-called lenient mode that turns off the … Read more
The error you are getting is because your generic is using improper bounding. Change your method declaration to: public static <T extends IFoo2> T convert(IFoo1 foo1, Class<T> clz) { T foo2 = clz.newInstance(); …. return foo2; } There is another type of bounding you may have been thinking of. I recommend reading this SO question: … Read more
Maybe this code can help. public static void main(String[] args) throws Exception { // write your code here Scanner scanner = new Scanner(new File(“C:\\directory\\test.txt”)); List<BigInteger> bigIntegers = new ArrayList<>(); while (scanner.hasNext()) { bigIntegers.add(new BigInteger(scanner.next())); } BigInteger total = new BigInteger(“0”); for(BigInteger bigInt: bigIntegers) { total = total.add(bigInt); } System.out.println(total); } 3 solved How to convert … Read more
Unittests in general test public observable behavior in your case it is the interaction with the two streams. create mocks for the two steams (usually I’d suggest to use a mocking framework but there are some simple implementations in the standard lib quite suitable for this purpose…) Configure the inputStream to return data in false … Read more