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Data Types and Variables

Data Types and Variables
How many primitive data types are there in Java?

8
6
7
9

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Data Types and Variables
What will be output of following program?public class Test{ public static void main(String[] args){ byte b=127; b++; b++; System.out.println(b); }}

Compiler error
2
None of these
-127
129

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Data Types and Variables
Determine output:public class Test { static void test(float x){ System.out.print("float"); } static void test(double x){ System.out.print("double"); } public static void main(String[] args){ test(99.9); }}

Exception is thrown at runtime
Compilation Error
float
double

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Data Types and Variables
Size of float and double in Java is

64 and 32
32 and 32
64 and 64
32 and 64

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Data Types and Variables
What is the output for the below code ?1. public class Test{2. public static void main(String[] args){3. byte b = 6;4. b+=8;5. System.out.println(b);6. b = b+7;7. System.out.println(b);8. }9. }

14 21
None of these
Compilation fails with an error at line 4
Compilation fails with an error at line 6
14 13

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Data Types and Variables
Which of the following automatic type conversion will be possible?

int to long
byte to int
long to int
short to int

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