In this article we will learn to implement a C program to find the length of a string without using strlen. A C program is provided below to find length of a string without using predefined function. Program is as follows: #include<stdio.h> int main() { char str[20]; printf("Enter a string: "); scanf("%s", str); int […]
C program to reverse an array in place using pointers
In this article we will learn to implement a C program to reverse an array in place using pointers. A C program is provided below to reverse the given array in place using pointers. Program is as follows: #include<stdio.h> void reversearray(int *p, int n) { int *first = p; int *last = p+n-1; while(first<last) { […]
C program to reverse an array in place
In this article we will learn to implement a C program to reverse an array in place (without using a temporary array. A C program is provided below to reverse an array in place. Program is as follows: #include<stdio.h> int main() { int array[20]; int n; printf("Enter number of elements: "); scanf("%d", &n); printf("Enter array […]
C program for strong number
In this article we will learn to implement a C program for strong number. A C program is provided below to check whether the given number is strong number or not. Examples of strong numbers: 1, 2, 145, etc. Program is as follows: #include<stdio.h> int fact(int n) { if(n==0 || n==1) return 1; […]
C program for perfect number
In this article we will learn to implement a C program for perfect number. A C program is provided below to check whether the given number is a perfect number or not. Examples of perfect numbers are: 6, 28, 496, etc. Program is as follows: #include<stdio.h> int main() { int n; printf("Enter a […]
C program to print prime numbers using Sieve of Eratosthenes
This is a C program to print prime numbers using Sieve of Eratosthenes, which is said to be the most efficient algorithm for generating prime numbers. The program is as follows: #include<stdio.h> int main() { int n; printf("Enter n value: "); scanf("%d", &n); int prime[n+1]; //Loading the array with numbers from 1 to n […]
C program to find the GCD of given two numbers
In this article we will learn to implement a C program to find the GCD of given two numbers. A C program is provided below to find the GCD of given two integers. There is a restriction on the input. First number given as input must be greater than the second number. Example […]
Displaying xUbuntu in fullscreen using VMWare
This article contains instructions on displaying xUbuntu in fullscreen using VMWare. Heard about xUbuntu from colleagues and decided to try it. Downloaded the ISO file and installed it using VMWare. The user interface of xUbuntu is very simple and pleasing. But I noticed that even when VMWare is in full screen mode, the […]
Applet program to handle mouse events
In this article we will learn to implement an Applet program to handle mouse events. A Java applet program is provided below to handle various mouse events. Program is as follows: import java.applet.*; import java.awt.*; import java.awt.event.*; public class MouseApplet extends Applet implements MouseListener { String msg="Initial Message"; public void init() { addMouseListener(this); } […]
Applet program to draw lines, ovals, and rectangles
In this article we will implement an Applet program to draw a line, oval and rectangle. An Applet program is provided below to draw lines, ovals, and rectangles. import java.applet.*; import java.awt.*; public class GApplet extends Applet { public void paint(Graphics g) { g.drawLine(20, 20, 500, 20); g.drawRect(20, 40, 200, 40); g.fillRect(300, 40, 200, […]