I'm learning Swift now (with basic programming know-how), and I'm making a String array containing a deck of 52 cards via a for loop, but I'm not sure how to append a value with an int and string values.
I know using \(int) converts an int to a string, but it doesn't seem to work when appending to an array. My code, including the error messages are below:
var suits = ["Spades", "Hearts", "Clubs", "Diamonds"]
var deck:[String] = []
for s in suits
{
deck.append("Ace of " + s)
deck.append("King of " + s)
deck.append("Queen of " + s)
deck.append("Jack of " + s)
for (var i = 2; i < 11; ++i)
{
deck.append(\(i) + " of " + s)
//error message: "Expected ',' separator"
//error message: "Invalid character in source file"
}
}
You need to have your (i) in quotes in order for it to be converted to a String.
deck.append("\(i)" + " of " + s)
You could also do this:
var value = String(i)
deck.append(value + " of " + s)
Related
I know it's been a while since this issue was resolved ( Simple calculator in java - using boolean to ask if user wants to continue ), but I wanted to recreate this, and when I tried to run it, I got error for all mathematical operators (add, minus, multiply or divide). Error says: "Cannot resolve method 'add'/'minus'/'multiply'/'divide'"
Maybe it would be easier if I add the actual code:
import javax.swing.JOptionPane;
public class Calculator {
public static void main(String[] args) {
double numberOne;
double numberTwo;
double result;
String number1;
String number2;
String input;
boolean useCalculator = false;
while (!useCalculator) {
number1 = JOptionPane.showInputDialog(null, "This is a calculator\nEnter first number");
numberOne = Double.parseDouble(number1);
input = JOptionPane.showInputDialog(null, "Choose from the following options:\n+\n-\n*\n/");
while (input == null || !(input.equals("+") || input.equals("*") || input.equals("/") || input.equals("-")))
input = JOptionPane.showInputDialog(null, "Thank you! What would you like to do?\nPlease choose from the following options:\n+\n-\n*\n/");
{
input = JOptionPane.showInputDialog(null, "The operator" + input + "is invalid. Please choose a correct one");
}
number2 = JOptionPane.showInputDialog(null, "Enter second number");
numberTwo = Double.parseDouble(number2);
if (input != null && input.equals("+")) {
add(numberOne, numberTwo);
result = add(numberOne, numberTwo);
JOptionPane.showMessageDialog(null, "The result of " + numberOne + " " + input + " " + numberTwo + " is: " + result);
} else if (input != null && input.equals("-")) {
minus(numberOne, numberTwo);
result = minus(numberOne, numberTwo);
JOptionPane.showMessageDialog(null, "The result of " + numberOne + " " + input + " " + numberTwo + " is: " + result);
} else if (input != null && input.equals("*")) {
multiply(numberOne, numberTwo);
result = multiply(numberOne, numberTwo);
JOptionPane.showMessageDialog(null, "The result of " + numberOne + " " + input + " " + numberTwo + " is: " + result);
} else if (input != null && input.equals("/")) {
divide(numberOne, numberTwo);
result = divide(numberOne, numberTwo);
JOptionPane.showMessageDialog(null, "The result of " + numberOne + " " + input + " " + numberTwo + " is: " + result);
}
}
System.out.println("End of program.");
}
}
Any thoughts on how to fix this and run it without those errors?
Thanks in advance :)
It looks like GUI was running in the background, so when I minimized window, I was able to see the calculator and to run it normally.
Message that was displayed in console was reminder about old JDK, so everything is fine now.
I am using the HDF5DotNet with C# and I can read only full data as the attached image in the dataset.
The hdf5 file is too big, up to nearly 1.4GB, and if I load the whole array into the memory then it will be out of memory.
I would like to read all data from One columns
double[] values = new double[203572];
string m_Doc_01 = "data/sample/line";
HDFql.Execute("USE DIRECTORY " + "\"" + File_Directory + "\"");
HDFql.Execute("USE FILE " + "\"" + File_Name + "\"");
HDFql.Execute("CREATE CHUNKED(1, 203572) DATASET my_dataset_BS AS DOUBLE(2050, 203572)");
How to "m_Doc_01 ==> my_dataset_BS" Data
???
???
for (int i = 0; i < 2050; i++)
{
HDFql.Execute("SELECT FROM " + "\"" + m_Doc_01 + "\"" + "(1:::1) INTO MEMORY " + HDFql.VariableRegister(values));
}
To read the column that you have highlighted in the screenshot (i.e. column #0), you have to change the hyperslab to (please note the 0):
HDFql.Execute("SELECT FROM " + "\"" + m_Doc_01 + "\"" + "(, 0:::1) INTO MEMORY " + HDFql.VariableRegister(values));
That said, if you want to loop through the dataset and read one column at the time do the following (also better to register variable values before the loop starts and unregister it after the loop is done - this will increase performance):
number = HDFql.VariableRegister(values);
for(int i = 0; i < 2050; i++)
{
HDFql.Execute("SELECT FROM " + "\"" + m_Doc_01 + "\"" + "(, " + i + ":::1) INTO MEMORY " + number);
// do something with variable "values" (which contains the values of column #i)
}
HDFql.VariableUnregister(values);
Is there any possible way to make a linked list in cypher within one transaction ?
Iv'e tried ForEach with Match but according to neo4jClien it is not possible to set Match in ForEach.
My approach :
public static void save(List<Post> nodes)
{
var gclient = graphdb.getConnection();
var create1 = gclient.Cypher.Create("(p:Post {nodes})");
var match = gclient.Cypher.Match("((t)-[r:lastPost]->(last))");
var create3 = gclient.Cypher.Create("t-[:lastPost]->p, p-[:next]->last");
var delete = gclient.Cypher.Delete("r");
string query = create1.Query.QueryText + " " + match.Query.QueryText + " "
+ create3.Query.QueryText + " " + delete.Query.QueryText;
gclient.Cypher
.Match("(t:Tmp)")
.WithParam("nodes", nodes)
.ForEach("(newPost in {nodes} | " + query + ")")
.ExecuteWithoutResults();
}
Thanks in advance .
this should do the trick.
static Neo4jClient.Cypher.ICypherFluentQuery addnode<T>(Neo4jClient.Cypher.ICypherFluentQuery q, IList<T> items, int idx, string label)
{
string sq = string.Format("({0}:{1} {{{2}}})", "c" + idx, label, "a" + idx);
q = q.Create(sq).WithParam("a" + idx, items[idx]);
return q;
}
static Neo4jClient.Cypher.ICypherFluentQuery addlink<T>(Neo4jClient.Cypher.ICypherFluentQuery q, int idx1, int idx2)
{
string sq = string.Format("{0}-[:LINKEDTO]->{1}", "c" + idx1, "c" + idx2);
q = q.Create(sq);
return q;
}
public static void Sample<T>(List<T> items, GraphClient client)
{
Neo4jClient.Cypher.ICypherFluentQuery q = client.Connection.Cypher;
for (int i = 1; i < items.Count; i++)
{
q = addnode<T>(q, items, i-1, "MYITEM");
if(i>1)
q = addlink<T>(q, i-2, i-1);
}
q.ExecuteWithoutResults();
}
I have the code below in a View method to parse JSON files. The method ContentsOfDictionary accepts the parameters d as Xojo.Core.Dictionary and level as an integer, and returns text.If I use ContentsOfDictionary in an action button, I get this error:
error: Not Enough arguments: got 0, expected at least 1
Here is a link to the test file I am using.
How do I call the method ContentsOfDictionary?
dim dict as Xojo.Core.Dictionary = Xojo.Data.ParseJSON (kJsonData)
const kEOL = &u0A
dim indent as text
for i as integer = 1 to level
indent = indent + " "
next
dim t as text
for each entry as Xojo.Core.DictionaryEntry in dict
t = t + indent + entry.Key + " "
if Xojo.Introspection.GetType( entry.Value ) is nil then
t = t + "nil" + kEOL
else
select case Xojo.Introspection.GetType( entry.Value ).Name
case "Boolean"
t = t + if( entry.Value, "true", "false" ) + kEOL
case "Text"
t = t + entry.Value + kEOL
case "Int32", "Int64"
//
// You get the idea
//
case "Dictionary"
t = t + kEOL + ContentsOfDictionary( entry.Value, level + 1 )
end select
end if
next
return t
UPDATE: None of the below applies as #johnnyB's example was of the ContentsOfDictionary function and should not have been trying to access the JSON data but just working on the supplied Dictionary. There is a link to the fixed test project in the comments below.
It's failing because you're not satisfying the parameter types of any of ContentsOfDictionary's signatures.
entry.Value is of type Auto, so before calling ContentsOfDictionary you need to copy entry.Value into a Dictionary and pass that in to the function instead.
For example...
...
case "Dictionary"
dim d as new Xojo.Core.Dictionary = entry.Value
t = t + kEOL + ContentsOfDictionary( d, level + 1 )
end select
I am having an issue and tried to do everything regarding this!! even HttpUtility.ParseQueryString won't help!
I am trying to parse twitter links coming from the API in the form of http://t.co/oEVQbihMWu. I need the fully resolved URL.
My code:
richTextBox1.Clear();
richTextBox1.Visible = true;
SearchOptions SO = new SearchOptions();
SO.GeoCode = richTextBox3.Text + "," + richTextBox2.Text + "mi";
TwitterResponse<TwitterSearchResultCollection> TweetSearchResult = TwitterSearch.Search(tokens, "#blogger", SO);
if (TweetSearchResult.Result != RequestResult.Success) richTextBox1.Text = "connection Error";
else
{
string a = null;
foreach (var tweet in TweetSearchResult.ResponseObject)
{
string b = tweet.User.Location.Contains(",") ? tweet.User.Location.Replace(",", "-") : tweet.User.Location;
a += string.Format("{0},{1},{2},{3},{4},{5},{6},{7}", tweet.CreatedDate, b, tweet.User.Id,
tweet.User.ScreenName, tweet.User.Name, tweet.User.NumberOfFollowers, tweet.User.Website, Environment.NewLine);
richTextBox1.AppendText(" " + tweet.CreatedDate + "\n" + tweet.User.Location + "\n" + tweet.User.Id + "\n" + tweet.User.ScreenName + "\n" + tweet.User.Name + "\n" + tweet.User.NumberOfFollowers +
"\n" + tweet.User.Website + "\n" + tweet.Text + "\n\n\n");
}
links being represented by tweet.user.website.
any help? :)
In the API response, there is entities.urls which contains an array of url and expanded_url mappings. Check your library's documentation for equivalent.
Alternatively, if you inspect the response for t.co links, you will find this:
<noscript><META http-equiv="refresh" content="0;URL=http://www.fitnessbydanielle.com"></noscript><title>http://www.fitnessbydanielle.com</title><script>window.opener = null; location.replace("http:\/\/www.fitnessbydanielle.com")</script>
Parse it to get the url.
I managed to crack it.
What I did:
foreach (var tweet in TweetSearchResult.ResponseObject)
{
if(tweet.User.Website != null)
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(tweet.User.Website);
req.AllowAutoRedirect = false;
var resp = req.GetResponse();
string realUrl = resp.Headers["Location"];
string b = tweet.User.Location.Contains(",") ? tweet.User.Location.Replace(",", "-") : tweet.User.Location;
a += string.Format("{0},{1},{2},{3},{4},{5},{6},{7}", tweet.CreatedDate, b, tweet.User.Id,
tweet.User.ScreenName, tweet.User.Name, tweet.User.NumberOfFollowers, realUrl, Environment.NewLine);
richTextBox1.AppendText(" " + tweet.CreatedDate + "\n" + tweet.User.Location + "\n" + tweet.User.Id + "\n" + tweet.User.ScreenName + "\n" + tweet.User.Name + "\n" + tweet.User.NumberOfFollowers +
"\n" + realUrl + "\n" + tweet.Text + "\n\n\n");
}
}
File.AppendAllText(#".\BloggerTable.csv", a, Encoding.UTF8);
}
Wrapped it inside a condition so no users without website will show and used a webrequest to get the link. stored the location inside the httprequest header for each and every tweet.