eduguru 
C program to reverse words in a string This profram will invert each word occurring in the input string. Algorithm is very simple just scan the string and keep on storing characters until a space comes. If a space is found then we have found one word so we append null terminator and then reverse the … Read more
C program to draw circles in circles #include<graphics.h> #include<conio.h> #include<dos.h> main() { int gd = DETECT, gm, x, y, color, angle = 0; struct arccoordstype a, b; initgraph(&gd, &gm, “C:\\TC\\BGI”); delay(2000); while(angle<=360) { setcolor(BLACK); arc(getmaxx()/2,getmaxy()/2,angle,angle+2,100); setcolor(RED); getarccoords(&a); circle(a.xstart,a.ystart,25); setcolor(BLACK); arc(getmaxx()/2,getmaxy()/2,angle,angle+2,150); getarccoords(&a); setcolor(GREEN); circle(a.xstart,a.ystart,25); angle = angle+5; delay(50); } getch(); closegraph(); return 0; }
Traffic light program in c #include<graphics.h> #include<conio.h> #include<dos.h> #include<stdlib.h> main() { int gd = DETECT, gm, midx, midy; initgraph(&gd, &gm, “C:\\TC\\BGI”); midx = getmaxx()/2; midy = getmaxy()/2; setcolor(RED); settextstyle(SCRIPT_FONT, HORIZ_DIR, 3); settextjustify(CENTER_TEXT, CENTER_TEXT); outtextxy(midx, midy-10, “Traffic Light Simulation”); outtextxy(midx, midy+10, “Press any key to start”); getch(); cleardevice(); setcolor(WHITE); settextstyle(DEFAULT_FONT, HORIZ_DIR, 1); rectangle(midx-30,midy-80,midx+30,midy+80); circle(midx, midy-50, 22); … Read more
Paint program in c language This program can draw different shapes using mouse such as line, circle, pixel and many other shapes. You can also change the color, clear the screen. #include<graphics.h> #include<dos.h> #include<math.h> #include<stdlib.h> #include<stdio.h> #include<conio.h> union REGS i, o; int leftcolor[15]; int get_key() { union REGS i,o; i.h.ah = 0; int86(22, &i, … Read more
Drawing concentric circles – C graphics examples #include <graphics.h> int main() { int gd = DETECT, gm; int x = 320, y = 240, radius; initgraph(&gd, &gm, “C:\\TC\\BGI”); for ( radius = 25; radius <= 125 ; radius = radius + 20) circle(x, y, radius); getch(); closegraph(); return 0; }
C graphics programming #include <graphics.h> #include <conio.h> int main() { int gd = DETECT, gm; initgraph(&gd, &gm,”C:\\TC\\BGI”); outtextxy(10, 20, “Graphics programming is fun!”); circle(200, 200, 50); setcolor(BLUE); line(350, 250, 450, 50); getch(); closegraph( ); return 0; }
comment in c program Example – comments in a program #include <stdio.h> int main() { // Single line comment in a C program printf(“Writing comments is very useful.\n”); /* * Multi-line comment syntax * Comments help us to understand program later … Read more
How to disable IPv6 in Ubuntu To disable ipv6, you have to open /etc/sysctl.conf using any text editor and insert the following lines at the end: net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = 1 If ipv6 is still not disabled, then the problem is that sysctl.conf is still not activated. To solve this, open a terminal(Ctrl+Alt+T) and type … Read more
sudo privileges to an existing user in ubuntu If you have already created the user, you can add the user to the sudo group by running the following command in a Terminal: sudo usermod -a -G sudo username
MySQL Server Logs MySQL Server has several logs that can help you find out what activity is taking place. By default, no logs are enabled, except the error log on Windows. (The DDL log is always created when required, and has no user-configurable options. The following logspecific sections provide information about the server options that … Read more