simple java program to display armstrong number. What is armstrong number - In armstrong number sum of cubes of its digits is equal to the number itself.
Example 1: 153 - 1^3+5^ 3+ 3^ 3 =1+125+27= 153, therefore 153 is armstrong number.
Example 2: 125 - 1^ 3+2^ 3+5^ 3= 1+8+125=134, therefore 125 is not an armstrong number.
The code check the number given by user is amrstrong number or not .
Simple java program to reverse the digits in a number. Logic for reversing the number, sum of digits and armstrong number are similar, even in c sharp, php, c++, c. To reverse, digits are manipulated from last position. Solution and explanation, for the program is below.
class RevNumber
{
public static void main(String args[])
{
int s=0,x,n=425;
while(n > 0)
{
x=n%10;
s=s*10+x;
n=n/10;
}
System.out.println(“ The Reversed number is :”+ s);
}
}
fetch data from mysql table and print using php. Here data are displayed in tabular format (multiple column), but it can be changed to noraml display. Let us see, how mysql select query retrieve and print data via php.
Very simple php code. Change the DB name and password. Connection details can also be made in different php.
<?php
$DBServer = 'localhost'; // e.g 'localhost' or '192.168.1.100'
$DBUser = 'root';
$DBPass = '';
$DBName = '';$mysqli = new mysqli($DBServer, $DBUser, $DBPass, $DBName);
1st php mysql application using database connection. Let us see how to connect mysql database using php5.This topic covers creating a database in mysql, code or program to establish connection, print the message.
Mysqli is a relation database driver used as an interface between mysql and php .
mysqli is a replacement for the mysql fuctions, with object oriented and procedural version. If you are beginner proceed with mysqli.
Program to find number of each vowel in a string. i.e number of a, e, i, o, u separately in a string using switch case. Couting each or particular word in a string. Asked in interviews, mostly in technical round, to test programming skills. Programming languages like java, php, c++,c, c sharp.
Simple java program to find total number of vowels in a particular string. This type of question are asked in interviews, mainly in technical round, to test the programming skills. This program also helps to find the consonants.
Let us see a simple program to find, how many 5rupees, 2rupees and 1rupee are there in Rs.53. Number of 5,2,1 rupees note or coins in rs.53.
Array “rup” will be holding 5,2,1. If you want to find only number of 5 and 2 rupees then remove 1. You also add a number to that array. Change accordingly.
In php it is easy to sum the elements or values in an array by using a built in function array_sum(). Go here to know more about array_sum().
< ?php $valuesAr=array(2,4,5); echo array_sum($valuesAr); ? >
Output displayed by this program:
11
simple java program to sum all the numbers in an integer array. Build-in function to sum a values in array is used in java8. array_sum in php.
class Sumarray{
public static void main(String args[]) {
int[] a={8,5,6,2,4};
int sum=0;
for(int i=0;i< a.length;i++)
{
sum +=a[i];
}
System.out.println(“Sum of array”+sum);
}}
output:
Sum of array 25
Simple java program to reverse content in array. Logic is easy, it can also be used in other programming languages such as c# sharp, php... Here the index is reversed so the elements in the array are reversed.
class Reversearray{
public static void main(String args[]) {
int[] oldarray={4,5,6};
int[] resultarray=new int[3];
int m=0;
int len=oldarray.length;
for(int i=len-1;i>=0;i--)
{
resultarray[m]=oldarray[i];
m++;
}
for(int i=0;i< oldarray.length;i++)
{
System.out.println(resultarray[i]);
}
}
}
output:
