What is the difference between an identifier and variable?

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I'm a bit confused about identifiers. In my textbook it says, "We use identifiers to name variables (and many other things) in Java."

I'm not really sure what this means. Is it like assigning a variable...to a variable? What?

So far, I'm getting this impression:

int a, b, c; a = 2; b = 99; c = a + b;

Is c an identifier? When it says, "Using identifiers to name variables," are identifiers like int, double, boolean, things used to categorize variables? Please provide some examples.

You can think of an identifier as variable's name. I wouldn't get too worked up about it.

For example:

int a;
a = 15;

In this example, a is a identifier that refers to the variable with the same name. If a weren't a variable but a function:

int a()
{
}

a();

Then a would still be an identifier but it would identify a function. Just as "Reena" can identify both a person and some kind of a non-profit organization.

What is the difference between an identifier and a variable?, You can think of an identifier as variable's name. I wouldn't get too worked up about it. For example: int a; a = 15;. In this example, a is a� The word ‘identifier’ clearly defines itself, an identifier is a name given to an entity, which distinctly identifies an entity in a program at the time of its execution.

An identifier is just the name of the variable. So for the variable c, the identifier is the actual text c, which is just your way of referring to the variable. It's possible (as you'll learn later on) that you can have multiple identifiers for the same variable, kinda like how in real life a person can have multiple names.

Don't worry too much about it right now, just keep trying and focusing on the more important stuff like loops, conditionals, classes, etc.

What is the difference between an identifier and variable?, This content particularly explains the difference between identifier and variable. An identifier is a name given to variable, function, class etc. Key Differences between Identifier and Variable. Both an identifier and a variable are the names allotted by users to a particular entity in a program. The identifier is only used to identify an entity uniquely in a program at the time of execution whereas, a variable is a name given to a memory location, that is used to hold a value.

I agree with the GNU C's definition that says that there are 5 tokens in C: keywords, identifiers, operators, constants and separators. The same goes for Java.

int is not an identifier because it is defined as a keyword. Operators are excluded from the list of valid identifier symbols. Constants are just values, but the name that refers to a constant is an identifier.

Basically: any 'word' (a group of 1 or more valid identifier symbols) is an identifier as long as it isn't on the list of keywords. In Java, the valid identifier symbols are Unicode letters, digits, dollar and underscores. Digits can't be the first symbol. Dollars and underscores, though valid, shouldn't be used with the exception of as a separator in multi-word constant identifiers like MY_MAGIC_NUMBER = 6.

Difference Between Identifier and Variable (with Comparison Chart , Identifiers are used for the naming of variables, functions, and arrays. It is a string of alphanumeric characters that begins with an alphabet, or an underscore( _ )� This content includes the difference between Keyword and Identifier in C++. Keywords are words, reserved by a language and are known to the compiler. Identifiers are the user-defined word which we provide as a name to the variables, functions, labels of the class.

Identifier are the names of variables and variables are storage locations of data.Variables point to the memory location where data is read and modified

Difference between Identifiers and Variables in C, What is an Identifier? An identifier refers to a name of a variable, function, array, class or structure. The identifiers are created by programmers. It� A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.

In Java, identifier is the name given to a program element, where a program element could be a package, type (class, interface, enum, annotation), fields (instance/static variables), enum constants, annotation type elements, methods, local variables, and parameters. Essentially, an identifier identifies a program element.

For example, in the following code,

package declarations;

public class A {

    private int value = 1;

    private enum SUITS {CLUB, DIAMOND, HEART, SPADE};

    public A(int val) {
        this.value = val;
    }

    public int doSomething() {
        int c = value + 10;
        return c;
    }
}

// declarations, A, value, SUITS, CLUB, DIAMOND, HEART, SPADE,
// A, val, value, val, doSomething, c, value, c are the 
// identifiers in order of their occurrence.

Difference Between Identifier and Variable, Variable is also an identifier, its name uniquely identifies itself in a program. Here , the fundamental difference between an identifier and� An ordinal variable is similar to a categorical variable. The difference between the two is that there is a clear ordering of the variables. For example, suppose you have a variable, economic status, with three categories (low, medium and high).

Python For All: Difference between identifier and variable, This Video illustrates the concept of Identifiers, Keywords and Variables For more videos Duration: 3:46 Posted: Mar 7, 2020 258# Difference between Identifier, Keyword and Variable Dr. Kapil Govil. Loading Unsubscribe from Dr. Kapil Govil? Cancel Unsubscribe. Working Subscribe Subscribed Unsubscribe 9.87K

258# Difference between Identifier, Keyword and Variable, What is difference between variable and identifier. c++ variables. 7th October 2016, 9:33 AM. Utsav Solanki. 6 Answers. New Answer. Sort by: Votes, Date. +14 .

What is difference between variable and identifier, Python keyword is a unique programming term intended to perform some action. There are as many as 33 such keywords in Python, each serving a different�

Comments
  • Good analogy between Reena as a person and Reena as organization
  • Very nice example.
  • an identifier is not just a variable's name, as you even show later in your answer, so your first sentence is misleading
  • Multiple identifiers for the same variable? I've only seen that in C++. You can have multiple references to the same object, but an object is not a variable. Conversely, multiple variables with the same identifier are possible in every language with shadowing, namespaces, or even just scope.
  • identifiers are not just names of variables. you should give a definition of identifier
  • identifiers can hold constants too, not just variables, so your definition is wrong even in your first sentence. And the name of a class is an identifier too
  • your definition of identifier could be improved if you cited a source, also, you missed out constants. So if you had a source and included a complete definition for identifier in java then that'd be good
  • Please use the code formating next time. I have edited your answer for now.
  • This question intrigued me because it is a simple concept but often confusing to beginners such as myself trying to get our heads around the larger concepts of Java programming. So I did some digging and found what I think is a good definition of a Java Identifier (reference: Beginning Java 8 Fundamentals by Kishori Sharan). To Summarize: An Identifier is simply the technical term for a name given to a class, method, variable, file etc. in a java program.
  • Your answer is misleading. "int" is not an identifier - it is a variable type. An identifier in your example is the word "god", which is also a variable with the same name. "int god" is a declaration of a variable of type int.
  • Can you please explain further your solution ?
  • i meant, a function name is not a variable since we don't intend to store any value in it although a function's name itself will store the address of first statement of the function.