What is the default value of class variable in Java?

If there are no constructors written for a class, Java provides a no-argument default constructor where the instance variables are set to their default values. For int and double variables, the default value used is 0, and for String and other object variables, the default is null.

Do class variables have default values?

The instance variables are visible for all methods, constructors and block in the class. Instance variables have default values. For numbers, the default value is 0, for Booleans it is false, and for object references it is null. Values can be assigned during the declaration or within the constructor.

How Java assigns a default value to local variables?

The local variables do not have any default values in Java. This means that they can be declared and assigned a value before the variables are used for the first time, otherwise, the compiler throws an error.

Who is assigning default values to variables?

Variable default value in Java – Stack Overflow.

What is the default value of the reference variable?

null value
When variable is of any class type (non-primitive type), then it is known as reference variable, and it contains null value as a default value.

What is the default value of int variable *?

0
Variables of type “int” have a default value of 0.

What is mean by default value of variable?

Default values are the values assigned to variables when no specific value is explicitly assigned in the program. When a table definition is created based on the Data repository, in SQL databases, a default value can be defined in the database.

How are variables initialized by default in Java?

Each class variable, instance variable, or array component is initialized with a default value when it is created (§15.9, §15.10): For type byte, the default value is zero, that is, the value of (byte)0. For type short, the default value is zero, that is, the value of (short)0.

What is the default value for a local variable?

The default value of the local variable is NULL in JAVA, no primitive values or object references.

What is the default value of local variable What is the default value of instance variable?

Difference between Instance Variable and Local Variable

Instance Variable	Local Variable
These variables are given a default value if it is not assigned by code.	These variables do not always have some value, so there must be a value assigned by code.

How can we set default value to the variable in sass?

Sass – Variable Defaults You can set the default values for variables by adding ! default flag to the end of the variable value. It will not re-assign the value, if it is already assigned to the variable.

What is mean by default value of variables?