Basic Elements of Java
2
3
5
6
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2
3
5
6
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# Enter Comments Here
""
/* Enter Comments Here*/
** Enter Comments Here **
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Int a b, c;
Int a, b, c;
Int abc;
Int a b c;
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Variables
Prompt lines
Named constants
Expressions
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\r
\n
\l
\b
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Insertion Point 1
Insertion Point 2
Insertion Point 3
Insertion Point 4
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WelcomeHome
Welcome Home
Welcome (on first line) Home (on second line)
Welcome \n Home
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Sum of 5 and 6 = 11
Sum of 5 and 6 = 56
Sum of x and y = 11
None of these
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Sum of 5 and 6 = 11
Sum of x and y = 11
Sum of x and y = x + y
None of these
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The sum = 37
The sum = 13 24
The sum = 13 + 24
The sum = 1324
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Beta = beta + 1; alpha = beta;
Alpha = 1 + beta;
Alpha = alpha + beta;
None of these
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Alpha = 1 + beta;
Alpha = alpha + beta;
Alpha = beta; beta = beta + 1;
None of these
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Only (i) is valid
(i) and (ii) are valid
(ii) and (iii) are valid
(i) and (iii) are valid
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Its content cannot change during program execution.
Its value can be changed during program execution.
It is a memory location.
It is declared using the reserved word final.
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Input
Output
Assignment
Both an input statement and an assignment statement
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10
20
30
None of these
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14
15
16
18
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18.0
18.5
19.0
None of these
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20
20.25
21
22
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9
9.0
9.9
10
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7
8
8.0
10
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13
14
14.8
15
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Unary operands
Binary operands
Operators
Expressions
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0
2
3
4
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0
1
24
25
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10
14
29
31
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X * y + z
X * (y + z)
Y + x * z
None of these
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X * y - z / w
X * y - x * z / w
X * (y - z) / w
X (y - z) / w
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36
36.0
37
This is an illegal Java expression
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0
1/3
3
9
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1
2
3
None of these
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Semantic
Logical
Syntax
Grammatical
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+
#
!=
?
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Char
Char
CHAR
None of these
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Int
Public
Static
Num
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1Stop_and_go
#salaryForTheMonth
_Hello_There
MyNumber!
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Program!
Program_1
1program
Program 1
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Int
Char
Double
Byte
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46,259
46259
462.59
None of these
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2.5E1
2.6
2.561100E1
256.1100E1
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0.4
4
4.0
4.4
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