Based on the equals method for Circle objects, what is the output for the following code sequence? Circle c1 = new Circle(5); Circle c2 = new Circle(5); Ci r cle c3 = new Circle(15); Circle c4nul1 Syst em out. println(cl c1) Syst em out println(c1 c2); Syst em out. pri nt l n(c1 c3) Syst em out . pri nt l n( c 1 == c 4) Syst em out. pri nt l n(c1. equals(c1)): Syst em out. println(c1. equal s (c2)) Syst em out. pri ntl n(c1. equal s (c3)): Syst em out . println(c1. equal s (c4)) public boolean equals (Ci rcl e circle) / / Precondi t 1 on: ci r cl e ' = nul l // Ret urns true if the circles have the same radi us ot herwise, ret urns false if (thi s . radius == circleradius ret urn true; else ret urn false