super(param1); this(defaultParam2);

Week 5: Class hierarchies/11B. Encrypted connection

@@ -0,0 +1,152 @@
+The program defines the class 'Connection'. 
+Write the class 'EncryptedConnection', which inherits the class Connection.
+
+The class has 2 new string-type attributes, encryption and password. 
+Implement get methods for these.
+
+In addition, 3 constructor must be written in the class:
+1 
+A constructor that takes as parameters speed, encryption(string) and password (also string): 
+the constructor sets the values of the attirbutes according to the parameters.
+
+2 
+A constructor that takes as its parameter only the speed. 
+A constructor that sets the speed attribute according to the parameter. 
+The attribute encryption value is "SHA" and the password is "abcabc".
+
+3 
+A constructor with no parameters at all. 
+The speed is set to 100, and the other attributes are set to the same values as in the case of constructor 2
+
+
+
+
+
+import java.util.Random;
+
+public class Test{
+    public static void main(String[] args){
+        final Random r = new Random();
+        
+        
+        System.out.println("Testing class EncryptedConnection...");
+        
+        String[] hash = "SHA SSH ABC LTD SMP DDR OY RNO RKK".split(" ");
+        String[] passwords = "abc123 pass12 password parrwosd 123456".split(" ");
+        
+        // Testing inheritance first
+        Connection y = new EncryptedConnection();
+        
+        // Constructors
+        String selectedH = hash[r.nextInt(hash.length)];
+        String passW = passwords[r.nextInt(passwords.length)];
+        int speed = r.nextInt(100) + 1;
+        
+        System.out.println("Creating an encrypted connection with the following parameters");
+        System.out.println("(" + speed + ", " + selectedH + ", " + passW + ")");
+        EncryptedConnection conn = new EncryptedConnection(speed, selectedH, passW);
+        System.out.println("Speed: " + conn.getSpeed());
+        System.out.println("Protection: " + conn.getEncryption());
+        System.out.println("Password: " + conn.getPassword());
+        System.out.println("");
+        
+        speed = r.nextInt(100) + 1;
+        System.out.println("Creating an encrypted connection with the following parameters");
+        System.out.println("(" + speed + ")");
+        conn = new EncryptedConnection(speed);
+        System.out.println("Speed: " + conn.getSpeed());
+        System.out.println("Protection: " + conn.getEncryption());
+        System.out.println("Password: " + conn.getPassword());
+        System.out.println("");
+        
+        System.out.println("Creating an encrypted connection with the following parameters");
+        System.out.println("()");
+        conn = new EncryptedConnection();
+        System.out.println("Speed: " + conn.getSpeed());
+        System.out.println("Protection: " + conn.getEncryption());
+        System.out.println("Password: " + conn.getPassword());
+        System.out.println("");
+    }
+}
+
+
+class Connection {
+    protected int speed;
+    
+    public Connection(int speed) {
+        this.speed = speed;
+    }
+    
+    public int getSpeed() {
+        return speed;
+    }
+}
+
+
+
+
+//ADD
+class EncryptedConnection extends Connection {
+    private String encryption;
+    private String password;
+
+    //constructor1
+    public EncryptedConnection(int speed, String encryption, String password){
+        super(speed);
+        this.encryption = encryption;
+        this.password = password;
+    }
+
+    //constructor2
+    public EncryptedConnection(int speed){
+        super(speed);
+        this.encryption = "SHA";
+        this.password = "abcabc";
+    }
+
+    //constructor3
+    // APPROACH1
+    // public EncryptedConnection(){
+    //     super(100);
+    //     this.encryption = "SHA";
+    //     this.password = "abcabc";
+    // }
+    //APPROACH2
+    // CALL/reuse CONSTRUCTOR2
+    public EncryptedConnection() {
+        this(100);  
+    }
+
+    public String getEncryption() {
+        return encryption;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+}
+
+
+
+
+
+Testing class EncryptedConnection...
+Creating an encrypted connection with the following parameters
+(17, OY, 123456)
+Speed: 17
+Protection: OY
+Password: 123456
+
+Creating an encrypted connection with the following parameters
+(23)
+Speed: 23
+Protection: SHA
+Password: abcabc
+
+Creating an encrypted connection with the following parameters
+()
+Speed: 100
+Protection: SHA
+Password: abcabc
+
+