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company/vesminetelesa/Galaxia.java

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+package company.vesminetelesa;
+
+public class Galaxia extends Slnecna_sustava{
+    private String name;
+    private Slnecna_sustava[] planetarne_sustavy = new Slnecna_sustava[1000];
+    private int pocet_sustav;
+
+    public void addSustava(Slnecna_sustava tato_sustava){
+        planetarne_sustavy[pocet_sustav] = new Slnecna_sustava();
+    }
+
+    public Galaxia() {
+        pocet_sustav = 0;
+    }
+}

company/vesminetelesa/Hviezda.java

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+package company.vesminetelesa;
+
+public class Hviezda extends Vesmirne_telesa {
+    private String name;
+    private double size;
+    private double age;
+    private Boolean svietim = false;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public double getSize() {
+        return size;
+    }
+
+    public void setSize(double size) {
+        this.size = size;
+    }
+
+    public double getAge() {
+        return age;
+    }
+
+    public void setAge(double age) {
+        this.age = age;
+    }
+
+    public Hviezda() {
+        setType("Hviezda");
+        setName("Hviezda Y");
+        setSize(0);
+        setAge(0);
+    }
+
+    public Hviezda(String name, double size, double age) {
+        setName(name);
+        setSize(size);
+        setAge(age);
+        setType("Hviezda");
+    }
+
+    public void sviet(){
+        if(svietim == false){
+            svietim = true;
+        }
+        else System.out.println("Uz svietim");
+    }
+
+    public void zhasni(){
+        if(svietim == true){
+            svietim = false;
+        }
+        else System.out.println("Uz som zhasnuta");
+    }
+}

company/vesminetelesa/Kometa.java

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+package company.vesminetelesa;
+
+public class Kometa extends Vesmirne_telesa{
+    private String name;
+    private double speed;
+}

company/vesminetelesa/Planeta.java

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+package company.vesminetelesa;
+
+public class Planeta extends Vesmirne_telesa{
+    private String name;
+    private double weight;
+    private double diameter;
+    private double gravity;
+    private Boolean weightSet=false;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public double getWeight() {
+        return weight;
+    }
+
+    public void setWeight(double weight) {
+        if(this.weight > weight){
+            if(this.weight-weight >= 1000){
+                System.out.println("Ja chudnem");
+            }
+            else System.out.println("Ja chudnem velmi");
+        }
+        else if(this.weight < weight){
+            if(this.weight-weight <= 1000){
+                System.out.println("Dokelu pribrala som");
+            }
+            else System.out.println("Velmo som pribrala");
+        }
+        if((weight + 1000) < this.weight){
+            decreaseGravity(0.1);
+        }
+        else if((weight-1000) > this.weight){
+            increaseGravity(0.1);
+        }
+        this.weight = weight;
+    }
+
+    public double getDiameter() {
+        return diameter;
+    }
+
+    public void setDiameter(double diameter) {
+        this.diameter = diameter;
+    }
+
+    public double getGravity() {
+        return gravity;
+    }
+
+    public void setGravity(double gravity) {
+        this.gravity = gravity;
+    }
+
+    public void increaseGravity(double add){
+        setGravity(this.gravity+add);
+  }
+
+    public void decreaseGravity(double dec){
+        setGravity(this.gravity-dec);
+    }
+
+    public void setPlanetaryWeight(double weight){
+        if(weightSet == false){
+            setWeight(this.weight+weight);
+            weightSet = true;
+        }
+        else System.out.println("Menit vahu mozes len raz");
+    }
+
+    public Planeta(String name, double weight, double diameter) {
+        setName(name);
+        setWeight(weight);
+        setDiameter(diameter);
+    }
+
+    public Planeta(double gravity) {
+        setGravity(gravity);
+    }
+
+    public Planeta() {
+        setName("Planeta X");
+        setWeight(0);
+        setDiameter(0);
+    }
+}

company/vesminetelesa/Slnecna_sustava.java

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+package company.vesminetelesa;
+
+public class Slnecna_sustava {
+    private String name;
+    private Hviezda slnko;
+    private Vesmirne_telesa[] obezne_telesa = new Vesmirne_telesa[5000];
+    private int object_counter;
+
+    public int getObject_counter() {
+        return object_counter;
+    }
+
+    public void setObject_counter(int object_counter) {
+        this.object_counter = object_counter;
+    }
+
+    public Slnecna_sustava() {
+        slnko = new Hviezda();
+        setObject_counter(0);
+
+        String[] names = {"Merkur","Venusa","Zem","Mars","Jupiter","Saturn","Uran","Neptun"};
+        double[] weights = {33022,48685,59736,64185,18986,56846,86810,10243};
+        double[] diameters = {4879,12104,12742,6779,139820,116460,50724,49244};
+
+        for(int i=0;i<8;i++,object_counter++){
+            obezne_telesa[object_counter] = new Planeta(names[i],weights[i],diameters[i]);
+            System.out.println("Nova planeta");
+        }
+        obezne_telesa[object_counter] = new Hviezda("Slnko",696340,4603);
+        object_counter++;
+    }
+
+    public void addTeleso(Vesmirne_telesa nove_teleso){
+        obezne_telesa[object_counter]=nove_teleso;
+        object_counter++;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

company/vesminetelesa/Vesmirne_telesa.java

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+package company.vesminetelesa;
+
+public class Vesmirne_telesa {
+    public String type;
+
+    public String getType() {
+        return type;
+    }
+
+    protected void setType(String type) {
+        this.type = type;
+    }
+}