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C++ substring seems to be pointing at wrong spot


C++ substring seems to be pointing at wrong spot

By : mexicanace
Date : November 21 2020, 01:01 AM
help you fix your problem Short Answer
Your file is encoded in UTF-8 and it has a Byte Order Mark at the beginning.
code :


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Spot whats wrong in the code

Spot whats wrong in the code


By : Ivan Toshev
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further If all you want to do is retrieve a field from the database and Response.Write all rows, you could use something like this. Note that I have removed the VB.NET code to create a List. I also added a WHERE clause to your SQL query in case you don't want empty values (as per the VB.NET) and added an ORDER BY clause to replace the List sort.
code :
Dim strSQL
Set adoCon = Server.CreateObject("ADODB.Connection")
adoCon.Open "DRIVER={Microsoft Access Driver (*.mdb)}; DBQ=" & Server.MapPath("DatabaseName.mdb")
Set rsLogbook = Server.CreateObject("ADODB.Recordset")
strSQL = "SELECT TableName.FieldName FROM TableName WHERE TableName.FieldName != '' ORDER BY TableName.FieldName ASC;" 'Add order by clause so you don't need to sort the array
rsLogbook.Open strSQL, adoCon

Do Until rsLogBook.EOF
    Response.Write(rsLogbook("FieldName")) & "<br />"
    rsLogBook.MoveNext
Loop

rsLogbook.Close
Set rsLogbook = Nothing
Set adoCon = Nothing
Rectangle getting drawn in the wrong spot

Rectangle getting drawn in the wrong spot


By : vasuki mahesh
Date : March 29 2020, 07:55 AM
seems to work fine Do you override the paint(..) method of your JFrame? The coordinates seem to be in the coordinate space of the window/JFrame, where 0/0 includes the non-client area (the close box, title bar and so on).
You should create a separate component and add this to the content pane of your main frame - just a very tiny example - note that I am using paintComponent(..):
code :
public static class MyPanel extends JPanel {
    @Override
    protected void paintComponent(final Graphics g) {
        super.paintComponent(g);
        final Graphics2D g2 = (Graphics2D) g;
        g2.setColor(Color.BLUE);
        g2.draw(new Rectangle2D.Float(8,8, 128, 64));
    }

}
public class MyFrame extends JFrame {
    public MyFrame() {
       ...
       // since JDK 1.4 you do not need to use JFrame.getContentPane().add(..)
       this.add(new MyPanel());
    }
}
Seems that I have a wrong index somewhere, but cannot spot it

Seems that I have a wrong index somewhere, but cannot spot it


By : Anthony Martinez
Date : March 29 2020, 07:55 AM
I hope this helps you . It doesn't work because the matrix is getting smaller and you keep iterating based on the old size, i.e. if the totalMatrix has 3 rows in the beginning and you delete one, the last iteration will try to get a nonexisting row.
While iterating on the Matrix, gather the indices you want to delete. Afterward, you can delete them at once.
code :
 toDelete = []
 for i in range(len(totalMatrix)): # or np.size(totalMatrix[:, 0])
     for j in range(10):
         if totalMatrix[i,j] == -1 : 
             toDelete.append(i)
 totalMatrix = np.delete(totalMatrix, i, axis=0)
Is there a more automated way to spot a substring?

Is there a more automated way to spot a substring?


By : user3134425
Date : March 29 2020, 07:55 AM
seems to work fine I am trying to extract the temperature from a device and i am sending a command through serial to get a response from the machine. The response (aka the string) is b'wf_test m_temp \r\nmain card temp=31500 (31.5 oC)\r\n[root@testest:~]# \r\n[root@testest:~]# ' , You may use regular expressions here, e.g. try using re.findall:
code :
inp = "wf_test m_temp \r\nmain card temp=31500 (31.5 oC)\r\n[root@testest:~]# \r\n[root@testest:~]# "
temps = re.findall(r'\((\d+(?:\.\d+)?) oC\)', inp)
print(temps)
['31.5']
temps = re.findall(r'\btemp=(\d+)', inp)
Java regex spot substring starting with specific chars following by some digits

Java regex spot substring starting with specific chars following by some digits


By : laurel
Date : March 29 2020, 07:55 AM
To fix this issue I am trying to find a regex pattern like 'ABCxxxxx' (x is digit and as an example we have 5 x) to spot any similar substrings in another string. , You can try this regex:
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