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Size of a variable without using sizeof operator?
Declare 2 pointer variable of the same type and assign the address of the variable to them and then increment one of them. Find the difference between the above 2 pointers using a type cast. This will be the size of the variable. Eg: double i; double * p = &i; double * q= p; p++; cout<<(int)p-(int)q<<endl;
Declare and initialize 2D array in java using two statements- one to declare variable the other to initialize elements?
I'm not sure what you're asking. Do you mean when you declare/instantiate an array like this? int[][] arr; arr = {{1, 2, 3},{4, 5, 6}}; I think that's right. *********************************** THIS IS INCORRECT because you can assign constant values to array only at time of initialization. Therefore above code will throw an error. Correct way is: int[][] arr = {{1, 2, 3},{4, 5, 6}}; thanx .. itsabhinav123@gmail.com
What is atmospheric distortion?
Moving or variable-temperature air above or inside the telescope which distorts the image.
Use the control variable during the execution of the loop?
Control variable which is used in control structures.e.g. for(int i=0;i
What is variable in c plus plus programming?
You declare a variable by first defining its data type and then its name followed by a semi-colon. Here is an example: int variable; The example above declares an uninitialized integer variable. You can initialize the variable by giving it a value such as "int variable = 1;". It is important to initialize your variables, because you can get errors when executing your program that the variable does not have a value or is uninitialized. Variables that are uninitialized have whatever garbage value happens to be when the program is executed. Here are all of the data types that a variable can be: *int - integer value *char - character value *bool - boolean value
