Question: What is the relationship between a class and an object of the class ? What is the purpose of a constructor? What is the complete

What is the relationship between a class and an object of the class?
What is the purpose of a constructor?
What is the complete name of the Java source code file that contains a public class called Student?
A method in a class called Student has the name getStudentName. What would you expect this method to do?
Write one complete Java statement to call the method display Message of the GradeBook class. The method does not take any arguments, and does not return a value. Use the variable name myGradeBook. DO NOT write an entire program, class, or method. Write only one line of code!
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