11.
Which one is a valid declaration of a boolean?
A.
boolean b1 = 0;
B.
boolean b2 = ‘false’;
C.
boolean b3 = false;
D.
boolean b4 = Boolean.false();
E.
boolean b5 = no;
12.
Which three are valid declarations of a float?
float f1 = -343;
float f2 = 3.14;
float f3 = 0x12345;
float f4 = 42e7;
float f5 = 2001.0D;
float f6 = 2.81F;
A.
1, 2, 4
B.
2, 3, 5
C.
1, 3, 6
D.
2, 4, 6
13.
Which is a valid declarations of a String?
A.
String s1 = null;
B.
String s2 = ‘null’;
C.
String s3 = (String) ‘abc’;
D.
String s4 = (String) ‘ufeed’;
14.
What is the numerical range of a char?
A.
-128 to 127
B.
-(215) to (215) – 1
C.
0 to 32767
D.
0 to 65535
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