Saturday, 17 December 2016

Core Java Data – Type MCQ

1. What is the range of data type short in Java?
a) -128 to 127
b) -32768 to 32767
c) -2147483648 to 2147483647
d) None of the mentioned

2. An expression involving int, byte with literal numbers then resulting expression will be to which of these?
a) int
b) long
c) byte
d) float

3. Which of the following are legal lines of Java code?
1. int w = (int)888.8;
2. byte x = (byte)1L;
3. long y = (byte)12;
4. byte z = (byte)123L;
a) 1 and 2
b) 2 and 3
c) 3 and 4
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Friday, 16 December 2016

UGC Net Computer Science Paper II Dec 12 Page 1 (Solved)

UGC Net Computer Science Paper II Dec 12

1. Consider the circuit shown below. In a certain steady state, Y is at logical ‘l’.What are possible values of A, B, C ?
(A) A = 0, B = 0, C = 1
(B) A = 0, B = C = 1
(C) A = 1, B = C = 0
(D) A = B = 1, C = 1
Flip-flop UGC Net Computer Science Paper II Dec 12

Answer A
Explanation : Nand gate behave opposite of and gate so if any 0 in input then result will be 1. So output Y will be 1 if A = 0, B = 0, C = 1

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Wednesday, 14 December 2016

Prepare Statement Select Mysqli

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Girfa : My SQLi Tutorial</title>
</head>

<body><?php
$servername = "localhost";
$username   = "root";
$password   = "";
$dbname     = "tmp";
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Write a program to copy a file into another file.

Q. Write a program to copy a file into another file?

/*   ###########################
     Girfa : Student Help
     for more program visit : http://girfahelp.blogspot.in/p/c-language.html
     copy a file content to another file
     ############################
*/
#include<stdio.h>
#include<conio.h>
void main()
{
     FILE *sfile,*dfile;
     char ch;
     int flag=1;
     clrscr();
     sfile=fopen("source.txt","r"); /* Source file */
     if(sfile==NULL)
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