How is hashset maintained in memory by java ?
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What is the servletcontext listener and what is JspContext and page context pls tell in simple words.
Hi Friends , am newbie to ajax. For example just consider one account registration - A form contains 8 text fields with submit button. In this form second texbox contains "username " . On right side of text box there is a label box . On clilck action i need to determine user is available or not. Is it possible on clicking label or should i click submit button.
what are advantages of HQL? what are advantages of Native SQL? what are advantages of Criteria API?
how to deploy the web application ?
How to call the m1() method of Base class in below snippet ? class Base { public void m1() { System.out.println("Base m1 "); } public void m2() { System.out.println("Base m1 "); } } ====================== class Derived extends Base { public void m1() { System.out.println("Derived m1"); } public void m3() { System.out.println("Derived m3"); } public static void main(String[] args) { Base ob=new Derived(); ob.m1(); //System.out.println("Hello World!"+ob.m1()); } }
what debugging tool that can be used to debug the java programs?
What are the uses of the set interfaces in the java collections? : java collections
what is the difference between banking and insurance domain?
What is the use of the list interface in the java collection? : java collections
wnet use DAO design in u r project?
what is difference between web server and application server?
when exactly should we use throws ,and wen exactly should we use the try and catch for exceptional handling