This quiz focuses on fundamental operators and wrapper classes in Java. It tests understanding of methods like isNaN in Double, key methods in wrapper classes, and correct usage of operators and conditionals in Java programming, enhancing practical Java coding skills.
Int [] myList = {"1", "2", "3"};
Int [] myList = (5, 8, 2);
Int myList [] [] = {4,9,7,0};
Int myList [] = {4, 3, 7};
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Small
Tiny
Huge
Compilation fails
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long
short
double
byte
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50h
This results in compile time error'Number Frame Exception'
This results in runtime error 'Number Format Exception'
50
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The output is Equal
The output is Not Equal
An error at " if (x = y)" causes compilation to fall.
The program executes but no output is show on console.
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Switch block
Switch expression
Switch statement
Switch construct
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True
False
Null
0
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0
1
2
3
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8 0
8 1
9 2
9 1
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2147483646
1
2
Cannot be shifted
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Are also called as objects
Are not objects
Cannot access methods of object class
Can access methods of object class
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Extensible
Immutable
Serializable
All the above
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XxxValue()
Valueof()
ParseXxx()
Xxxvalue()
ValueOf()
ParseXxx()
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2variable
Variable2
_whatavariable
_3_
$anothervar
#myvar
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