USER-DEFINED CLASSES AND ADTS - Java Programming: From Problem Analysis to Program Design - page 542

a. Write a statement to instantiate the object myState with the values
"Alaska" , 626932 , and 586412.00 , respectively.
b. Write a statement that outputs the value of the instance variable name
of the object myState .
c. Write a statement that changes the value of the instance variable
population of the object myState to 627000 .
13. Explain why we need both public and private members in a class?
14. Write a Java statement that creates the object mysteryClock of the Clock
type and initializes the instance variables hr , min ,and sec of mysteryClock
to 7 , 18 ,and 39 , respectively.
15. Given the statements:
Clock firstClock = new Clock(2, 6, 35);
Clock secondClock = new Clock(6, 23, 17);
firstClock = secondClock;
what is the output of the following statements?
firstClock.print();
System.out.println();
secondClock.print();
System.out.println();
16. Consider the following declarations:
public class XClass
{

private int u;
private double w;

public XClass()
{
}

public XClass( int a, double b)
{
}

public void func()
{
}

public void print()
{
}

}

XClass x = new XClass(10, 20.75);
a. How many members does class XClass have?
b. How many private members does class XClass have?