Which of these values can a boolean variable contain?

Which of these values can a boolean variable contain?

2) What will be the output for the below code ?

public class Test
  { 
       public static void main(String[] args)
  {
       byte i = 128;
       System.out.println(i); 
       } 
 }

3) In Java, the word true is ................

4) Literal can be of which of these data types?

5) Which of these occupy first 0 to 127 in Unicode character set used for characters in Java?