The new operator

The new operator

• The new operator is used in the context of an assignment.

• General form:
  var-class = new class-name(list-arg);

• var-class is a variable of the type of the class being created.

• class-name is the name of the class being instantiated.

• The class name followed by a list of arguments specifies the class constructor.

• If the class does not define a constructor, new will use Java's default constructor.

• new creates an object of any class type and returns a reference to the created object.

• The reference to the newly created object is assigned to var-class.

• new may fail if there is not enough memory to allocate the object.

• If this occurs, there will be a runtime exception. In the examples in the book, lack of memory is not a concern, but it is relevant in real-world programs.

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