Can you print a variable name in Java?

In short. You can’t print just the name of a variable.

How do you print out a variable in Java?

If we are given a variable in Java, we can print it by using the print() method, the println() method, and the printf() method.

How do you name a variable in Java?

For variables, the Java naming convention is to always start with a lowercase letter and then capitalize the first letter of every subsequent word. Variables in Java are not allowed to contain white space, so variables made from compound words are to be written with a lower camel case syntax.

How do you print object names?

  1. If you have an object: object. getClass(). getName() will give you the fully qualified name of the object (i.e.package. className. For example, String thing = new String(); thing.
  2. If you have a class name: className. class. getName() will give you the fully qualified name of the object (i.e.package. className.

How do you call an object name in Java?

The dot ( . ) is used to access the object’s attributes and methods. To call a method in Java, write the method name followed by a set of parentheses (), followed by a semicolon ( ; ).

How do you access the variable of an object?

To access class variables, you use the same dot notation as with instance variables. To retrieve or change the value of the class variable, you can use either the instance or the name of the class on the left side of the dot.

What is Println in Java?

println(): println() method in Java is also used to display a text on the console. This text is passed as the parameter to this method in the form of String. This method prints the text on the console and the cursor remains at the start of the next line at the console. The next printing takes place from next line.

How do you name variables?

Rules for naming a variable

  1. A variable name can only have letters (both uppercase and lowercase letters), digits and underscore.
  2. The first letter of a variable should be either a letter or an underscore.
  3. There is no rule on how long a variable name (identifier) can be.

How do you declare a variable name?

Rules for naming variables:

  1. All variable names must begin with a letter of the alphabet or an. underscore( _ ).
  2. After the first initial letter, variable names can also contain letters and numbers.
  3. Uppercase characters are distinct from lowercase characters.
  4. You cannot use a C++ keyword (reserved word) as a variable name.

How do you name an object in Java?

Objects/Variables: Java Naming convention specifies that instances and other variables must start with lowercase and if there are multiple words in the name, then you need to use Uppercase for starting letters for the words except for the starting word. This is called as lowerCamelCase.

How do I find the name of an object?

Access the name property on the object’s constructor to get the class name of the object, e.g. obj.constructor.name . The constructor property returns a reference to the constructor function that created the instance object. Copied! We accessed the name property on the Object.