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Data Types and Variables

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

7
9
6
8

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Data Types and Variables
What would be the output of the following fraction of code ?int Integer = 34 ;char String = 'S' ;System.out.print( Integer ) ;System.out.print( String ) ;

34
Does not compile as Integer and String are API class names.
34 S
S
Throws exception.

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Data Types and Variables
What will be the output for the below code ?1. public class Test{2. int i=8;3. int j=9;4. public static void main(String[] args){5. add();6. }7. public static void add(){8. int k = i+j;9. System.out.println(k);10. }11. }

0
None of these
Compilation fails with an error at line 5
17
Compilation fails with an error at line 8

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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); }}

129
Compiler error
None of these
2
-127

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Data Types and Variables
The smallest integer type is ......... and its size is ......... bits.

short, 8
short, 16
byte, 8
short, 16

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Data Types and Variables
What is the output of the following program?public class Test{static int x = 10 ; public static void main(String[] a){ Test test = new Test( ) ; Test test1 = new Test( ) ; test.x += 1 ; System.out.println( test.x + test1.x ) ; }}

21
Compilation Error
Throws Exception
20
22

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