What is the range of byte data type in Java?

What is the range of byte data type in Java?

2) What is the output of this program?

      class mainclass {
         public static void main(String args[])
          {
             char a = 'A';
             a++;
 	    System.out.print((int)a);
         }
      }

3) Which of the following are legal lines of Java code?

int w = (int)888.8;
 
 byte x = (byte)100L; 
 long y = (byte)100; 
  
 byte z = (byte)100L;

4) What is the limitation of toString() method of BigDecimal?

5) What is the order of variables in Enum?