How to Loop Through Arguments Passed to function
package com.apryll.package2;
public class sample2
{
public static void main(String args[])
{
sample2 objsample2 = new sample2();
objsample2.argCount(1, 2, 3, 4);
}
public void argCount(int... args)
{
System.out.println(args.length);
}
}
Sample1.java
package com.apryll.package1;
//import static com.apryll.package2.sample2.Funct3;
public class Sample1
{
public static void main(String[] args)
{
Sample1 objSample1 = new Sample1();
//sample2 objSample2 = new sample2();
System.out.println(com.apryll.package2.sample2.City);
objSample1.Funct2();
//objSample2.Funct4();
//Sample1.Funct1();
}
static void Funct1()
{
System.out.println("I am Static Function 1");
}
void Funct2()
{
System.out.println(Funct3());
System.out.println(City);
}
}
Sample2.java
package com.apryll.package2;
public class sample2
{
public static int City = 555;
public static String Funct3()
{
return "Hi there";
}
public void Funct4()
{
System.out.println("Hello There");
}
}
1
package com.apryll.package1;
import com.apryll.package2.sample2.*;
public class Sample1
{
public static void main(String[] args)
{
sample2 objSample2 = new sample2();
}
}
The Above Code Does not Work when creating a object for sample2 since in the import statements is sample2.* is given.It should be
import com.apryll.package2.sample2; . . . .
2
While Importing class methods and variables the static will not get imported unless you specify static
import in the import statement
You can Import the Static Methods and Variables in class as below
To Import static methods and Variables
import static com.apryll.package2.sample2.*;
To Import static methods and Variables
import static com.apryll.package2.sample2.*;
To Import static Variable City
import static com.apryll.package2.sample2.City;
To Import static Function getCityName
import static com.apryll.package2.sample2.getCityName;
3
You can directly access static method and Variable declared in some other package in static void main() method as follows
System.out.println(com.apryll.package2.sample2.City); System.out.println(com.apryll.package2.sample2.Funct3());
$objConn = setDbConn();
$strSQL = "CALL mp_proc_getHomePageProjNews('Chennai')";
if($objConn->multi_query($strSQL))
{
do
{
$l = 0;
/* store first result set */
if ($result = $objConn->use_result())
{
while($row = $result->fetch_row())
{
$arrTempResult[] = $row;
}
$arrResult[] = $arrTempResult;
unset($arrTempResult);
$result->close();
}
if($objConn->more_results())
{
}
} while ($objConn->next_result());
}
DROP PROCEDURE IF EXISTS proc_sample1;
CREATE PROCEDURE proc_sample1(IN pFruitId VARCHAR(255))
BEGIN
SET @strSQL = 'SELECT fruit_name
FROM fruits
WHERE fruit_id = ?';
SET @pFruitId = pFruitId;
PREPARE stmt FROM @strSQL;
EXECUTE stmt USING @pFruitId;
DEALLOCATE PREPARE stmt;
END
create table fruits(fruit_id int, fruit_name VARCHAR(255));
create table type(fruit_id int, status VARCHAR(255));
INSERT INTO fruits(fruit_id, fruit_name)
values(101, 'Apple'),
(102, 'Mango'),
(103, 'Lemon'),
(104, 'Grape'),
(105, 'Orange');
INSERT INTO type(fruit_id, status)
values(101, 'Edible'),
(101, 'Sweet'),
(102, 'Edible'),
(103, 'Edible'),
(103, 'Salty'),
(103, 'Sour'),
(104, 'Sour');
When i Use Inner Join as Below the Output would be
To prevent the repetition of fruit name the queries are as follows
SELECT f.fruit_id, f.fruit_name
FROM fruits f
WHERE f.fruit_id in(SELECT DISTINCT fruit_id
FROM type);
SELECT DISTINCT t.Fruit_id, fruit_name
FROM fruits f RIGHT OUTER JOIN
type t ON F.Fruit_id = t.Fruit_id;
SELECT fruits.*
FROM fruits inner join
type on type.fruit_id = fruits.fruit_id
GROUP BY type.fruit_id;
There are two ways of adding compression to php file
Method 1
Simple add the below line in the php file at the beginning
ob_start( 'ob_gzhandler' );
How to Find Host and Domain Name
Terminal Command
hostname
After installing apache in CentOS it would go to Apache 2 Test Page.
To locate this directory you need to go to /var/www/
In this directory you can create your file which you needs to run.
To set up Virtual Host navigate to /etc/httpd/conf/httpd.conf file
Open the file in gedit or editor of your preference.
Add the lines below
<VirtualHost *:80> DocumentRoot /var/www/sample/ ServerName virtualhost1 </VirtualHost>
The document root points out to sample older in www directory
The server name is virtual host name you type in URL
You should also add the code in /etc/hosts file
127.0.0.1 virtualhost1
Once this is done dont forget to restart apache server in terminal by typing service httpd.restart
Now you are ready to go now.Open the browser and type http://virtualhost1/
Cheers!!!
Table Creation Script
CREATE TABLE Customers(Row_Id INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
Cust_Name VARCHAR(255),
Created_Date DATE,
Cust_Status TINYINT)
The Rows in the table are as Below
INSERT INTO Customers(Cust_Name, Created_Date, Cust_Status)
VALUES('Customer A', '20120516', 0),
('Customer B', '20120516', 0),
('Customer C', '20120516', 0),
('Customer A', '20120517', 1),
('Customer B', '20120517', 0),
('Customer C', '20120517', 0),
('Customer A', '20120520', 1),
('Customer B', '20120520', 0),
('Customer C', '20120520', 1),
('Customer A', '20120521', 0),
('Customer B', '20120521', 0),
('Customer C', '20120521', 1),
('Customer A', '20120526', 1),
('Customer B', '20120526', 1),
('Customer C', '20120526', 0),
('Customer A', '20120530', 1),
('Customer B', '20120530', 1),
('Customer C', '20120530', 0);
I want to take the rows which changes their Cust_Status from 0 to 1 only for first time.
When I run the script by giving 20120517 as parameter to where clause it should return Customer A.
When I run the script by giving 20120520 as parameter to where clause it should return Customer C.
When I run the script by giving 20120526 as parameter to where clause it should return Customer B.
SELECT C.Cust_Name
FROM Customers C
WHERE C.Created_Date = '20120526' AND
C.Cust_Status = 1 AND
NOT EXISTS (SELECT c2.Cust_Name
FROM Customers c2
WHERE c2.Cust_Name = C.Cust_Name AND
c2.Cust_Status = 1 AND
c2.Created_Date < C.Created_Date)