Consider the following Point2D class. public class Point2D…

Consider the following Point2D class. public class Point2D { private double xCoord; private double yCoord;     public Point2D(double x, double y) { xCoord = x; yCoord = y; } } Which of the following code segments, appearing in a class other than Point2D, will correctly create an instance of a Point2D object?

Consider the following method, which is intended to count th…

Consider the following method, which is intended to count the number of times the letter “A” appears in the string str. public static int countA(String str) { int count = 0;   while (str.length() > 0) { int pos = str.indexOf(“A”); if (pos >= 0) { count++; /* missing code */ } else { return count; } } return count; } Which of the following should be used to replace /* missing code */ so that method countA will work as intended?