Month: January 2022

Hi, I have a issues, in this code I have a countdown with function declared, the issues now is that, if starting the time with only seconds timer go well but if the timer go to one minute if button is clicked timer suddently stop. Is there anything wrong with the code?

Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick

        If Label5.Text = 0 AndAlso Label8.Text = 0 AndAlso Label7.Text < 59 Then
            Label7.Text = Label7.Text - 1.ToString
            If Label5.Text = 0 AndAlso Label8.Text = 0 AndAlso Label7.Text = 0 Then
                Timer1.Stop()
                MsgBox("timer out", MessageBoxButtons.OK)
            End If
            If Label7.Text = 0 AndAlso Label8.Text > 1 Then
                Label8.Text = Label8.Text - 1.ToString
                Label7.Text = 59
            ElseIf Label5.Text >= 0 AndAlso Label8.Text >= 0 AndAlso Label7.Text = 59 Then
                Label7.Text = 59
                Label8.Text = 59
                Label7.Text = Label7.Text - 1.ToString
                Label8.Text = Label8.Text - 1.ToString
                Label5.Text = Label5.Text - 1.ToString
            End If
        End If
    End Sub

i have initialized the elements of the array by reading the strings from a file, however when I call the sort function, either the program crashes or it just outputs NULL. What could be a more efficient way to store data from a file?

the file that I have opened contains the following text:
"
ppp zaeem na2 lun
pti farea na1 balla

"

#include <iostream>
#include <string>
#include <stdlib.h>
#include <Conio.h>
#include <cstdlib>
#include <string>
#include <string.h>
#include <cstring>
#include <fstream>
using namespace std;

class candidate
{
public:
    string party;
    string name;
    string constituency;
    string symbol;

    candidate()
    {
        party = "";
        name = "";
        constituency = "";
        symbol = "";
    }
};

candidate *candi = new candidate[3];
int size = 0;

void read_into_array()
{
    int i = 0;
    string name, party, consti, symb;
    ifstream a("new.txt");
    if (!a)
        cout << "file not found." << endl;
    else
    {

        a >> party >> name >> consti >> symb;
        while (!a.eof())
        {   

            candi[i].party = party;
            candi[i].name = name;
            candi[i].constituency = consti;
            candi[i].symbol = symb;
            a >> party >> name >> consti >> symb;

            size++;
            i++;
        }
        a.close();
    }
}
class voter
{
public:
    void show_all_candidates()
    {
        for (int i = 0; i < size; i++)
        {
            cout << "Candidate's Name:  " << candi[i].name << endl;
            cout << "Candidate's Constituency:  " << candi[i].constituency << endl;
            cout << "Candidate's Party'" << candi[i].party << endl;
            cout << "Party Symbol:  " << candi[i].symbol << endl;
        }
    }

    void sort_by_name()
    {
        for (int i = 1; i < size; i++)
        {
            for (int j = 1; j <size-i; j++)
            {
                string temp=" ";
                if (candi[j].name > candi[j + 1].name)
                {

                    temp=candi[j].name;
                    candi[j].name = candi[j + 1].name;
                    candi[j + 1].name = temp;

                    temp=candi[j].constituency;
                    candi[j].constituency = candi[j + 1].constituency;
                    candi[j + 1].constituency = temp;

                    temp=candi[j].party;
                    candi[j].party = candi[j + 1].party;
                    candi[j + 1].party = temp;

                    temp=candi[j].symbol;
                    candi[j].symbol = candi[j + 1].symbol;
                    candi[j + 1].symbol = temp;
                }
            }
        }
    }
};

int main()
{
    voter obj_voter;

    read_into_array();
    obj_voter.sort_by_name();
    obj_voter.show_all_candidates();
   // obj_voter.sort_by_name();
}

Like title, more particulary, I have two textbox when user put links when finished the result will be on the second one with some default string in the 0 index of the counter and after the exiting of the loop. My question is how I can make that even the last line will be readed in the for loop? Because I was thinking that the problem will be in the temparray=textbox1.Lines

 tempArray = TextBox1.Lines
        For counter = 0 To tempArray.Length - 1
            If counter = 0 Then
                tempArray(0) = cbname2
            ElseIf counter = 1 Then
                tempArray(1) = "~!" & "img(" & tempArray(counter) & ")"
            ElseIf counter >= 2 Then
                tempArray(counter) = "img(" & tempArray(counter) & ")"
            End If
            TextBox2.Lines = tempArray
        Next
        TextBox2.Text &= vbCrLf & "!~" & " ~~~"
    End Sub

Hi all, I have created an Event handler to a function for clicking a generated button, now when this button is clicked need to paste in a textbox the Combobox.seleteditem (that it's a string. Each generated one (Combobox, textbox, button) will have a selected index of the Combobox that it's different, but that is not the problem because I put it in an if, the issues it's that I can't put inside this sub all the three-component. After all, it tells me that the windows form button cannot be a textbox, etc. Do I need to put another two event handlers for textbox and Combobox? (The code below it's a workaround, but I Like to do this with a button)

Public Sub btn_Click(sender As System.Object, ByVal e As System.EventArgs)
        'Dim btn As New Button
        'btn = CType(sender, Button)
        'Dim txt As New TextBox
        'txt = CType(sender, TextBox)
        Dim cbx As New ComboBox
        cbx = CType(sender, ComboBox)
        TextBox4.Text += cbx.SelectedItem.ToString & vbCrLf
    End Sub

#include<iostream>
using namespace std;
class Sports
{
    public:
        int tennis;
        int badminton;
        int cricket;
        int setA[20],setB[20],setC[20];
        int ab[20],bc[20],ca[20],abc[20];
        int n1,n2,n3,n4=0,total;
        void accept();  // method for accept the input
        void intersection();    //method for calculate intersection
        void display(); //method for display intersections
};
void Sports :: accept()
{
    cout<<"Enter the total number of players who play Tennis: "<<endl;
    cin>>tennis;
    cout<<"Enter the student roll no who play Tennis "<<endl;
    for(int i=0; i<tennis; i++)
        cin>>setA[i];

    cout<<"Enter the total number of players who play Badminton: "<<endl;
    cin>>badminton;
    cout<<"Enter the student roll no who play Badminton "<<endl;
    for(int i=0; i<badminton; i++)
        cin>>setB[i];

    cout<<"Enter the total number of players who play cricket: "<<endl;
    cin>>cricket;
        cout<<"Enter the student roll no who play cricket "<<endl;
    for(int i=0; i<cricket; i++)
        cin>>setC[i];

}
void Sports :: intersection()
{
    // Logic for intersection SET-A and SET-B

    for(int i=0;i<cricket;i++)
    {
         for(int j=0;j<badminton;j++)
         {
            if(setA[i]==setB[j])
            {
                ab[n1]=setA[i];
                n1++;
            }
         }  
    }

    // Logic for intersection SET-B and SET-C
    for(int i=0;i<badminton;i++)
    {
         for(int j=0;j<cricket;j++)
         {
            if(setB[i]==setC[j])
            {
                bc[n2]=setB[i];
                n2++;
            }
         }  
    }
    // Logic for intersection SET-C and SET-A
    for(int i=0;i<cricket;i++)
    {
         for(int j=0;j<tennis;j++)
         {
            if(setC[i]==setA[j])
            {
                ca[n3]=setC[i];
                n3++;
            }
         }  
    }
    //logic for A union B union C
    for(int i=0;i<tennis;i++)
    {
         for(int j=0;j<badminton;j++)
         {
            for(int k=0;k<cricket; k++)
            {
                if(setA[i]==setB[j] && setA[i]==setC[k])
                {
                    abc[n4]=setA[i];
                    n4++;
                }
            }
         }  
    }
   total=tennis+badminton+cricket-n1-n2-n3+n4;  
}
void Sports :: display()
{
    //logic for print intersection of tennis and Badminton
    cout<<"\nIntersection of SET-A and SET-B: ";
    for(int i=0; i<n1; i++)
        cout<<ab[i]<<" ";

    //logic for print intersection of Badminton and Cricket  
    cout<<"\nIntersection of SET-B and SET-C: ";
    for(int i=0; i<n2; i++)
        cout<<bc[i]<<" ";

    //logic for print intersection of Cricket and Tennis
    cout<<"\nIntersection of SET-C and SET-A: ";
    for(int i=0; i<n3; i++)
        cout<<ca[i]<<" ";

    // logic for print intersection of Tennis and Badminton and Cricket
    cout<<"\nIntersection of SET-A and SET-B and SET-C: ";
    for(int i=0; i<n4; i++)
        cout<<abc[i]<<" ";

    // logic for print total number of students in a class
    cout<<"\nTotal number of students in class are : "<<total;
}
int main()
{
    Sports s;
    s.accept();
    s.intersection();
    s.display();
    return 0;
}