Java Programming - Language Fundamentals - Discussion
Discussion Forum : Language Fundamentals - General Questions (Q.No. 12)
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;
Answer: Option
Explanation:
(1) and (3) are integer literals (32 bits), and integers can be legally assigned to floats (also 32 bits). (6) is correct because (F) is appended to the literal, declaring it as a float rather than a double (the default for floating point literals).
(2), (4),and (5) are all doubles.
Discussion:
36 comments Page 2 of 4.
Sachin Shekhar said:
8 years ago
float f1 = -343;
float f3 = 0x12345;
How 1 &3 are float?
Please explain anyone. I am not able to get it.
float f3 = 0x12345;
How 1 &3 are float?
Please explain anyone. I am not able to get it.
Sulemankhan said:
9 years ago
Why float f2=3.14 comes in double not under float?
Kayu said:
1 decade ago
How can we say 42e7 as a double?
Siddhesh said:
9 years ago
According to me, float f6 = 2.81F; is a valid declaration.
Shubham said:
9 years ago
Can anyone tell me?
Why 42e7 = 42*10^7?
Is not a float value as it range is less than 2^32?
Why 42e7 = 42*10^7?
Is not a float value as it range is less than 2^32?
Queen said:
10 years ago
Like int = 23456.
Soumya said:
1 decade ago
Is 42e7 not a float?
Divya said:
1 decade ago
Hi guys.
How option 3 is correct can anyone explain it?
How option 3 is correct can anyone explain it?
Asif Khan said:
7 years ago
f1=-343.
Because float ranges from 4.9e-324 to 3.4e+038.
Because float ranges from 4.9e-324 to 3.4e+038.
Radhey said:
1 decade ago
How the following declaration is correct in float?
float f1=-343;
float f1=-343;
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