T - the type of x values.
U - the type of y values.
public class Selection<T extends Comparable<T> extends Object,U extends Comparable <U>>
public T getX1()
public T getX2()
public U getY1()
public U getY2()
public void setX1(T x1)
x1 - the first x value.
public void setX2(T x2)
x2 - the second x value.
public void setY1(U y1)
y1 - the first y value.
public void setY2(U y2)
y2 - the second y value.
public StringtoString()