What is the output of this program?

class area
 {
       

What is the output of this program?

class area
 {
         public static void main(String args[])
          {
                  double r, pi, a;
              r = 9.8;
              pi = 3.14;
              a = pi * r * r;
              System.out.println(a);
         }
      }

2) What is the output of this program?

class increment
      {
         public static void main(String args[])
          {
                      int g = 3;
              System.out.print(++g * 8);
         }
      }

3) What is the output of this program?

class array_output
 {
         public static void main(String args[])
          {
                 char array_variable [] = new char[10];
 	    for (int i = 0; i < 10; ++i)
 {
                 array_variable[i] = 'i';
                 System.out.print(array_variable[i] + "" );
                 i++;
             }
         }
      }

4) What will be the output of these statement?

class output
 {
         public static void main(String args[])
          {
             double a, b,c;
             a = 3.0/0;
             b = 0/4.0;
             c=0/0.0;
   	    System.out.println(a);
             System.out.println(b);
             System.out.println(c);
         }
      }

5) What is the output of this program?

class array_output
      {
         public static void main(String args[])
          {
        	    int array_variable [] = new int[10];
 	    for (int i = 0; i < 10; ++i)
 {
                 array_variable[i] = i/2;
                 array_variable[i]++;
                 System.out.print(array_variable[i] + " ");
                 i++;
             }
           }
      }