Quiz answers of OOP
At this occasion, will be showed the answers of the quiz of OOP, to understand much, we had better write the codes here in Java's tool: first of all create the Java project, that is ObjekGeometri, in the ObjekGeometri.Java , write the codes bellow: package objekgeometri; public abstract class ObjekGeometri { private String warna ="putih"; private boolean terisi; private java.util.Date tanggalDiciptakan; /**menciptakan suatu objek gometri */ protected ObjekGeometri(){ tanggalDiciptakan = new java.util.Date(); } /**menciptakan suatu objek geometri dengan warna nilai terisi tertentu **/ protected ObjekGeometri(String warna, boolean terisi) { tanggalDiciptakan = new java.util.Date(); this.warna = warna; this.terisi = terisi; } /** mengembalikan warna*/ public String dapatWarna() { return warna; } /**mendaftarkan suatu warna baru*/ public void dapat