Added a example for Constructor

Constructor Example

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+package Java;
+
+public class Student {
+    String studentName;
+
+    public Student(String studentName) {
+        this.studentName = studentName;
+    }
+
+    public String getStudentName;
+}
+
+
+
+
+package Java;
+
+public class Test {
+    public static void main(String[] args) {
+        Student a = new Student("Jack");
+        System.out.println(a.studentName);
+        System.out.println(a.getStudentName);
+    }
+}

Random Number

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+package RandomNumber;
+
+import java.util.Random;
+
+public class RandomNumber {
+    public static void main(String[] args) {
+        Random r = new Random();
+        //printing 10 random numer between 0 to 500
+        for (int i = 0; i < 10; i++) ;
+        System.out.println(r.nextInt(500));
+
+
+    }
+}