Chapter 8 Practice Set Solutions

Author: kishanrajput23

39.Chapter_8_Practice_Set/cwh_39_ps_pr_03.java

@@ -0,0 +1,20 @@
+class Square {
+    int side;
+    
+    public int perimeter() {
+        return (4 * side);
+    }
+    
+    public int area() {
+        return side * side;
+    }
+}
+
+public class cwh_39_ps_pr_03 {
+    public static void main(String args[]) {
+        Square sq = new Square();
+        sq.side = 5;
+        System.out.println(sq.perimeter());
+        System.out.println(sq.area());
+    }
+}

39.Chapter_8_Practice_Set/cwh_39_ps_pr_04.java

@@ -0,0 +1,22 @@
+class Rectangle {
+    int length;
+    int breadth;
+    
+    public int perimeter() {
+        return (2 * length * breadth);
+    }
+    
+    public int area() {
+        return length * breadth;
+    }
+}
+
+public class cwh_39_ps_pr_04 {
+    public static void main(String args[]) {
+        Rectangle rec = new Rectangle();
+        rec.length = 5;
+        rec.breadth = 4;
+        System.out.println(rec.perimeter());
+        System.out.println(rec.area());
+    }
+}

39.Chapter_8_Practice_Set/cwh_39_ps_pr_05.java

@@ -0,0 +1,20 @@
+class TommyVecetti{
+    public void hit(){
+        System.out.println("Hitting the enemy");
+    }
+    public void run(){
+        System.out.println("Running from the enemy");
+    }
+    public void fire(){
+        System.out.println("Firing on the enemy");
+    }
+}
+
+public class cwh_39_ps_pr_05 {
+    public static void main(String args[]) {
+        TommyVecetti player = new TommyVecetti();
+        player.hit();
+        player.run();
+        player.fire();
+    }
+}