Which variable contains information which can be shared by all objects of the class?
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More on Classes and ObjectsObjects as Method Parameters
Class Variables and MethodsThe modifier static can be used on variables and on methods
Exampleclass Student { private int testGrade; // instance variable (non-static) private static int numStudents = 0; // static variable (class variable) private final static int pointsPossible = 100; // class constant public Student() { testGrade = 0; } public void setGrade(int gr) { testGrade = gr; } public int getGrade() { return testGrade; } public static void incrementNumStudents() { numStudents++; } public static int getNumStudents() { return numStudents; } }In this sample code:
The Keyword this
Fraction class exampleHere is a small class example -- it is a type for implementing Fraction objects.
Arrays of ObjectsCreating an array of objects is a little trickier than an array of a primitive type.
More class examples in Deitel Chapter 8What variables are shared by all objects of a class?A static variable is shared by all instances of a class. Only one variable created for the class.
Which variable is a variable whose single copy is shared by all the objects?Static Variables: When a variable is declared as static, then a single copy of the variable is created and shared among all objects at a class level.
Which variable value is common to all objects?Static variables are common to all objects.
Which variables are shared variables in Java?All public classes are shared, all variables can be shared if they accessible through public methods, etc. they can be shared as protected and private too as long as the calling method has access to them.
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