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You might think how base conversion worked out in JavaScript. Here the solution,  Number to Base Value   Number.toString([radix]); Number - Integer number that is to be converted radix - base value either 2, 8, 16 (optional parameter) Example: <script>  //INTEGER TO BASE VALUE var n = 42; document.write(n.toString(2)); document.write(n.toString(8)); document.write(n.toString(16)); //HEX TO base var h = 0xa; document.write(n.toString(2)); document.write(n.toString(8)); </script> Output: 101010 52 2a 1010 12 Any Base value to In tege r value parseInt(string, [radix]);  string - string that is to be converted. The string can be binary value, octal value or hexadecimal value   radix - base value either 2, 8, 16 (optional parameter) Example: <script>  //Binary to integer document.write(parseInt('111',2)); //Octal to integer document.write(parseInt('12',8)); //Hex to integer document.write(parseInt('0xc',16)); </sc...

Notices:   These are trivial, non-critical errors that PHP encounters while executing a script Example :  Accessing a variable that has not yet been defined. By default, such errors are not displayed to the user at all - although you can change this default behavior . Warnings: These are more serious errors Example: attempting to include() a file which does not exist. By default, these errors are displayed to the user, but they do not result in script termination. Fatal errors: These are critical errors Example: Instantiating an object of a non-existent class, or calling a non-existent function. These errors cause the immediate termination of the script, and PHP’s default behavior is to display them to the user when they take place. Parse Error: When we make mistake in PHP code like, missing semicolon or any unexpected symbol in code What are Exceptions? Exceptions are the PHP 5 way of flagging up an unexpected event. They contain an info...

Simple animation of random balls that bounces within the screen Source: #include<stdio.h> #include<graphics.h> #include<conio.h> #include<dos.h> #include<math.h> void drawBall(struct ball *b, int color); struct ball{ int x, y; int dx, dy; int radius; }; void main() { int gd=0, gm=VGAHI; int i; struct ball b[10]; initgraph(&gd, &gm, ""); for(i=1;i<=15;i++){ b[i].radius = rand()%20; b[i].x=rand()%getmaxx(); b[i].y=rand()%getmaxy(); b[i].dx=2; b[i].dy=4; } while(!kbhit()) { delay(5); cleardevice(); for(i=1;i<=15;i++) drawBall(&b[i],i); } closegraph(); } void drawBall(struct ball *b, int color){ setfillstyle(1,color); setcolor(color); fillellipse(b->x, b->y, b->radius, b->radius); if(b->x+b->radius > getmaxx() || b->x-b->radius<0) b->dx = -b->dx; if(b->y+b->radius > getmaxy() || b->y-b->radius<0) b->dy = -b->dy; b->x+=b-...