What is the numerical range of a char data type in Java?

What is the numerical range of a char data type in Java?

2) Which of these literals can be contained in float data type variable?

3) What is the output of below code snippet?

  class A
 {
   }
   enum Enums extends A
 {
     ABC, BCD, CDE, DEF;
 }

4) What is the output of this program?

      class asciicodes {
         public static void main(String args[])
          {
             char var1 = 'A';
 	    char var2 = 'a';
 	    System.out.println((int)var1 + " " + (int)var2);
         }
      }

5) Which of these coding types is used for data type characters in Java?