Internet Programming | Http is a Stateless

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Http is a Stateless Because a stateless protocol does not require the server to retain session information or status about each communications partner for the duration of multiple requests.  HTTP is a stateless protocol, which means that the connection between the browser and the server is lost once the transaction e...

Java Servlet code for print out the current date and time

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Java Servlet code for print out the current date and time import java.io.PrintWriter; import java.io.IOException; import java.util.Date; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** This servlet prints out the...

JavaScript HTML DOM Elements (Nodes) | Removing Existing HTML Elements

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Removing Existing HTML Elements To remove an HTML element, you must know the parent of the element: Example <!DOCTYPE html> <html> <body> <div id="div1"> <p id="p1">This is a paragraph.</p> <p id="p2">This is another paragraph.</p> </div> <script> var parent = document.getElementById("div1"); var...

JavaScript HTML DOM Elements (Nodes)

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Creating New HTML Elements (Nodes) To add a new element to the HTML DOM, you must create the element (element node) first, and then append it to an existing element. Example <!DOCTYPE html> <html> <body> <div id="div1"> <p id="p1">This is a paragraph.</p> <p id="p2">This is another paragraph.</p> </div> <script> var...

Internet Programming | HTML and JSP program for simple calculator

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HTML and JSP program for simple calculator <html> <head> <title>calculator program in jsp</title> <script> function checkValue(){ var msg = ""; if (f1.operand1.value == "" || f1.operand2.value == "") msg += "Operands missing\n"; if (f1.op.selectedIndex == 3 && f1.operand2.value == 0) msg += "Division by zero"; if...

Internet Programming | Simple Scientific calculator using HTML, JavaScript and css

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Simple Scientific calculator using HTML, JavaScript and css Hello guys, today i am going to walk you through step by step in creating your own simple scientific calculator which can perform the major calculations which most of the calculators do. Take a look at the awesome...