double a = 2.0; double b = 3.0; double c; c = 5.6; b = a; a = 9.2;solution
double len; double wid; double perimeter; Rectangle rect1; Rectangle rect2; len = 7; wid = 9; rect1 = new Rectangle(wid, len); perimeter = rect1.getPerimeter(); rect2 = rect1; rect1.setWidth(4); perimeter = rect2.getPerimeter();solution
int[] a = {1, 3, 5, 7}; int[] b = {2, 4}; int[] c; c = a; c[1] = 9; c = b; c[1] = 8; a = b; a[0] = 6;solution