Which of the following is a valid java keyword?

1. If
2. BOOLEAN
3. static
4. Switch

There are 128 set of different characters used in a Java program.

The number of bytes occupied by a character array of four rows and three columns are:

1. 12
2. 24
3. 96
4. 48

Consider the array given below:

char ch[] = {'A','E','I','O', 'U'};

Write the output of the following statements:

System.out.println(ch[0]*2);:

1. 65
2. 130
3. 'A'
4. 0