Which of these occupy first 0 to 127 in Unicode character set used for character

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

2) Which of these can not be used for a variable name in Java?

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

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

5) What is the output for the below code ?

public class Test
{
      public static void main(String[] args)
 { 
             int i = 010; 
             int j = 07; 
             System.out.println(i); 
             System.out.println(j); 
       } 
 }