1) Is this right?
In java.awt there is a class named Point which represents a point in 2-D space. It has methods getX() and getY().
Below is the definition of a Points class which has a Point[] array as an instance variable. You are to write a method getMaxX() that returns the maximum x coordiniate in the array of Points. You may assume the array is completely filled (no null values). Add your code to the class below.
import java.awt.Point;
public class Points
{
private Point[] points;
/**
* Constructs a collection of points
* @param an arra of Point objects
*/
public Points(Point[] thePoints)
{
points = thePoints;
}
/**
* Gets the maximum x co-ordinate in this collection of points
* @return the maximun x coordinate
*/
public double getMaxX()
{
double number = points.getX();
return number;
}
}2) What is the error here?
Is is the list? Do I have to define it using list[10]?
public class Error1
{
/**
* Prints the elements of the given array one per line
* @param list the array to print
*/
public static void printArray(int[] list)
{
for (int i = 0; i <= list.length; i++)
{
System.out.println(list[i]);
}
}
}3) I don't know how to fix this:
public class Error1B
{
public static void findEven(int n)
{
/**
* Prints all the even numbers less than the given number
* n the upper limit for the numbers
*/
for (int i = 1; i < n; i++)
{
if (i % 2 = 0)
{
System.out.println(i);
}
}
}
}