Function

  class demo
  {
    public static void main(String args[])
    {
      System.out.println("CCIT");
      star(4);
      System.out.println("\nAmravati");
      star(8);
    }
    static void star(int n)
    {
      for(int i=1;i<=n;i++)
        System.out.print("*");
    }
  }
  

  class demo
  {
    public static void main(String args[])
    {
      even(10);
      System.out.println();
      even(15);
    }
    static void even(int n)
    {
      for(int i=2;i<=n;i+=2)
        System.out.print(i+" ");
    }
  }
  

  class demo
  {
    public static void main(String args[])
    {
      display(10,20);
      System.out.println();
      display(5,12);
    }
    static void display(int a,int b)
    {
      for(int i=a;i<=b;i++)
        System.out.print(i+" ");
    }
  }
  

  class demo
  {
    public static void main(String args[])
    {
      max(10,20);
      System.out.println();
      max(512,105);
    }
    static void max(int a,int b)
    {
      if(a>b)
        System.out.println(“Greatest Number is" +a);
      else
        System.out.println(“Greatest Number is" +b);
    }
  }
  

  class demo
  {
    public static void main(String args[])
    {
      interest(5000,10.25,3);
      System.out.println();
      interest(20000,9.75,1);
    }
    static void interest(int P,double R,int N)
    {
      double si = P * R * N / 100.0;
      System.out.println("Simple Interest is"+si);
    }
  }
  

  class demo
  {
    public static void main(String args[])
    {
      volume(5.6,4.3,3.1);
      System.out.println();
      volume(2,5,3);
      System.out.println();
      volume(2.5,7.5f,3);
    }
    static void volume(double L,double B,double H)
    {
      double v=L*B*H;
      System.out.println("volume of box is"+v);
    }
  }
  

  import java.util.Scanner;
  class demo
  {
    public static void main(String args[])
    {
      Scanner stdin=new Scanner(System.in);
      System.out.println("Enter Radius :"" );
      double n = stdin.nextDouble( );
      volume(n);
    }
    static void volume(double R)
    {
      double v=4/3.0*3.14*R*R*R;
      System.out.println("volume of sphere is"+v);
    }
  }
  

  import java.util.Scanner;
  class demo
  {
    public static void main(String args[])
    {
      Scanner stdin=new Scanner(System.in);
      System.out.println("Enter Radius :");
      double n=stdin.nextDouble();
      area(n);
      circumference(n);
    }
    static void area(double R)
    {
      double a=3.14*R*R;
      System.out.println("Area of circle is "+a);
    }
    static void circumference(double R)
    {
      double c =2*3.14*R ;
      System.out.println("Circumference of circle is "+c);
    }
  }
  

  class demo
  {
    public static void main(String args[])
    {
      sum(10);
      System.out.println();
      sum(5);
    }
    static void sum(int n)
    {
      int s=0;
      for(int i=1;i<=n;i++)
        s=s+i;
      System.out.println(" Sum is "+ s );
    }
  }
  

  class demo
  {
    public static void main(String args[])
    {
      fact(5);
      System.out.println( );
      fact(7);
    }
    static void fact (int n)
    {
      int s=1;
      for(int i=1;i<=n;i++)
        s=s*i;
      System.out.println("Factorial is "+s);
    }
  }