[Solved] Reading and writing a file in byte array in C/C++

[ad_1] Make sure you’re checking the actual size. Windows has different ways of showing it. Compare the “Size” in bytes (e.g.16666) rather than the “size on disk”, which will be rounded up depending on the filesystem. Update Your drop box link has this code like this:- FILE* output = fopen( “test_output.dat”, “wb” ); fwrite( fileBuf, … Read more

[Solved] Convert c++ vector to c-style pointer

[ad_1] Look here vector<vector<double> >a(3,vector<double>(4)); You defined a as a vector having 3 elements of type vector<double>. So a[0] has type vector<double>. vector is a user defined type. It is not a pointer. 2 [ad_2] solved Convert c++ vector to c-style pointer

[Solved] What are the Min and Max variable names length from one million variable names in C++? [closed]

[ad_1] The first character in an identifier must be a-z, A-Z, or underscore, for 53 possibilities. Subsequent characters can be digits 0-9 too, for 63 possibilities. So n characters give 53 * (63**(n-1)) legal identifiers: Length Names 1 53 2 3339 3 210357 // much less than 1000000 4 13252491 // much more than 1000000 … Read more

[Solved] How can i create a contingency table in R? [closed]

[ad_1] You should give a reproducible example. Here some data: set.seed(1234) dat <- data.frame(Smoker=sample(c(‘Smoke’,’No_Smoke’),20,rep=TRUE), CANCER=sample(c(‘Cancer’,’NO_Cancer’),20,rep=TRUE)) Then using table you can get your contingency table: table(dat$Smoker,dat$CANCER) Cancer NO_Cancer No_Smoke 7 4 Smoke 5 4 For more information see ?table Description table uses the cross-classifying factors to build a contingency table of the counts at each combination … Read more

[Solved] Java Chat Client.. using .add methood [closed]

[ad_1] Use ListModel if you want to change the content of a JList dynamically. DefaultListModel listModel = new DefaultListModel(); JList list = new JList(listModel); listModel.addElement(“item”); listModel.addElement(“another item”); 4 [ad_2] solved Java Chat Client.. using .add methood [closed]

[Solved] Show Yes/No messagebox where No is grayed out win32api C++ [closed]

[ad_1] Use SetWindowsHookEx() or SetWinEventHook() with a thread-local hook to capture the MessageBox() dialog’s HWND, then you can use EnableWindow() to disable the button. Here is how to do it using SetWindowsHookEx(): HHOOK hHook = NULL; LRESULT CALLBACK CBTProc(int nCode, WPARAM wParam, LPARAM lParam) { if( nCode == HCBT_ACTIVATE ) { HWND hDlg = (HWND) … Read more

[Solved] Excel macro to find cells with numbers larger than 20 in a specific column and then divide the matching cells by 1000 [closed]

[ad_1] Let’s say your Kb values start in row 1 of column A, write this formula in column B : =IF(A1>20, A1/1000, A1) Basically, what this does, is tell the computer that if A1 is greater than 20, put A1/1000 in this cell, otherwise put A1. Stretching this formula down the column will give you … Read more

[Solved] joining two related tables in mysql

[ad_1] This Following Query Worked For Me : SELECT *, orders.id AS id, orders.name AS name FROM orders LEFT JOIN cart ON orders.authID = cart.authID WHERE orders.id != ‘0’ GROUP BY orders.authID [ad_2] solved joining two related tables in mysql

[Solved] Could someone look at my html5 and css3? [closed]

[ad_1] The problem with the side links in your code is you have <a href=”resume.html#Anchor”> You need to remove resume.html You’re already on that page, you just want the anchor like #Anchor. Same with the “return to top” links. 1 [ad_2] solved Could someone look at my html5 and css3? [closed]

[Solved] Operators I didnot understand [closed]

[ad_1] << >> These are the shift operators. They shift the left operand by the number of bits given in the right operand. The direction of the shift depends on which of the two operators was used. ^ This is the bitwise exclusive OR operator. The result will have bits set where only one of … Read more

[Solved] Read file with floats, calculate size, max, min, mean, median and standard deviaton in C [closed]

[ad_1] float x,i=~(257<<23),a,s,t;main(int n,char**f){a=-i;f=fopen(f[1],”r” );for(n=0;fscanf(f,”%f”,&x)>0;n++,s+=x,x<i?i=x:0,x>a?a=x:0,t+=x*x); printf(“%d %f %f %f %f\n”,n,a,i,s/n,sqrtf(t/n));} Sorry for the long code. Didn’t have time to make it shorter. 1 [ad_2] solved Read file with floats, calculate size, max, min, mean, median and standard deviaton in C [closed]

[Solved] Entering value to database after pressing enter from a textbox [closed]

[ad_1] Use for this KeyDown event private void YourTextBox_KeyDown(object sender, KeyEventArgs e) { String connection= “Data Source=YourServer;Initial Catalog=YourDatabase;user=User;password=YourPassword;Integrated Security=True;”; if (e.KeyCode == Keys.Enter) { string insertCmdText = “INSERT INTO table(column1)values(@valueForColumn1)”; SqlCommand sqlCom = new SqlCommand(insertCmdText,connection); sqlCom.Paramaters.AddWithValue(“@valueForColumn1”,YourTextBox.Text); connection.Open(); sqlCom.ExecuteNonQuery(); connection.Close(); } } But consider that saving into Database after KeyPress event is not a right way … Read more