Technology Questions

By using $_SERVER['REMOTE_ADDR'], $_['HTTP_REFERER'] etc.

You may be very good at coding,but if you questioning how on earth you could solve this problem.Then here is a solution. If you remember the good old days of our primary school then the solution is easy,"division is a matter of iterative subtraction".

public class TestEvenOdd {
public static void main(String arg[ ]){
int num=6;
int result=num;
while(result>=2){
result=result-2;
}
if(result==1){
System.out.println("The number is odd");
}else{
System.out.print("The number is even");
}
}
}

 These are the essential items that are present each time an Android project is created:

- AndroidManifest.xml

- build.xml

- bin/

- src/

- res/

- assets/

Most of the times compilers will do optimization to the code to speed up the program. For example in the below code,

int k = 15;
while( k == 15)

{
// Do something
}

compiler may think that value of 'k' is not getting changed in the program and replace it with 'while(true)', which will result in an infinite loop. In actual scenario, the value of 'k' may be getting updated from outside of the program.

Volatile keyword is used to tell compiler that the variable declared using 'volatile' may be used from outside the current scope, so that compiler won't apply any optimization. This matters only in case of multi-threaded applications.

In the above example if variable 'k' was declared using volatile, compiler will not optimize it. In shot, value of the volatile variables will be read from the memory location directly.

HTML language is a set of markup tags. The code used to specify the formatting are called tags. Markup languages are designed for the processing, definition and presentation of text. The language specifies code for formatting, both the layout and style, within a text file. 

HTML is an example of a markup language to improve the appearance of, and link text with data on the internet.

Mainframe Testing is similar to client-server applications testing, but you have to know how to operate basic TSO and ISPF commands and menus, view mainframe files, look at and use SDSF or other output tool, log on CICS and transactions, use FTP or another transfer protocol, submit the batch job - it's for QA testing of mainframe applications.