A variable is a named storage location that can hold any data value. A variable has two associated values ; r value and l value.
A variable is any named value of a specified type that can hold any value of that type, and that can change that value at any time while the name is in scope. A constant is exactly the same as a variable except that its value must be set at the point of instantiation and the given value cannot be altered while the name remains in scope. In other words, a variable is a value that may vary while a constant is a value that always remains the same.
A variable is used to hold value. The value may vary in every usage. An empty box is used to hold things. So, it can have in it the things we put in. The things to be held in the empty box,can change upon every usage. So, an empty box is like a variable.
You cannot create a variable named "while", since that is a reserved word.
Store the numbers in a suitable container such as an array. Assume the first number is the smallest and assign its value to a local variable. Traverse the remainder of the sequence, comparing each element's value to the stored value. If an element has a lower value, assign its value to the local variable. When the sequence is fully traversed, the local variable will hold the value of the smallest value in the sequence. Return that value.
Yes, this is correct. In terms of the compiled machine language, the variable represents a memory location. So, anytime the variable is referenced, and you either set the variable to a value, or retrieve a value from the variable, you are actually referencing the memory location pointed to by the variable.
Variable is of any Data Type and Data Type can be defined as a type of value that a Variable will hold.............means which type of value you want to store, eg: fractional value (3.5454), whole value (3,76,3,67), character value (a,v,c,f,b,z) etc.......... So The Use the Variable is to store a value of any kind (some mentioned above)
When a declared variable receives a value to hold. i.e. int lalalala; lalalala = 0; //initialization of lalalala
A variable is a named storage that can hold any value and has 2 values associated with it namely rvalue and lvalue. 'lvalue' is its location value, that is memory address.
Not necessarily.A variable can hold other types of values, not just numbers. For example, a variable can hold a date, a text (also know as "string"), a boolean (true or false) value, etc. In object-oriented programming, you basically make up your own data types.An array variable can hold several related values. The individual values are usually distinguished by a number, called a subscript. (In other words, you have the first element, the second element, etc. in the array.)
Pointers hold reference to variable value which is already declared in memory. Say suppose $x = 2; // Here variable is assigned value 2 in memory Now $y = &$x; // This basically points to the variable which is already allocated the value The use of pointers could greatly reduce memory usage if used correctly.
There cannot be a constant variable