# Quiz Discussion

What is the output of below code snippet?

   double a = 0.02;
double b = 0.03;
double c = b - a;
System.out.println(c);

BigDecimal _a = new BigDecimal("0.02");
BigDecimal _b = new BigDecimal("0.03");
BigDecimal _c = b.subtract(_a);
System.out.println(_c);

Course Name: Java

• 1]

0.009999999999999998
0.01

• 2]

0.01
0.009999999999999998

• 3]

0.01
0.01

• 4]

0.009999999999999998
0.009999999999999998

##### Solution
No Solution Present Yet

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# Quiz
1
Discuss

What is the numerical range of a char data type in Java?

• 1]

-128 to 127

• 2]

0 to 256

• 3]

0 to 32767

• 4]

0 to 65535

##### Solution
2
Discuss

What is the range of byte data type in Java?

• 1]

-128 to 127

• 2]

-32768 to 32767

• 3]

-2147483648 to 2147483647

• 4]

None of the mentioned

##### Solution
3
Discuss

What is the numerical range of a char data type in Java?Which of these coding types is used for data type characters in Java?

• 1]

-128 to 127 ASCII

• 2]

0 to 256 ISO-LATIN-1

• 3]

0 to 32767 UNICODE

• 4]

0 to 65535 UNICODE

##### Solution
4
Discuss

Which of the following is the advantage of BigDecimal over double?

• 1]

Syntax

• 2]

Memory usage

• 3]

Garbage creation

• 4]

Precision

##### Solution
5
Discuss

Which data type value is returned by all transcendental math functions?

• 1]

int

• 2]

float

• 3]

double

• 4]

long

##### Solution
6
Discuss

Which of these values can a boolean variable contain?

• 1]

True & False

• 2]

0 & 1

• 3]

Any integer value

• 4]

True

##### Solution
7
Discuss

What will be the output of the following Java code? - Area Of Circle

public class area {
public static void main(String args[])
{
double r, pi, a;
r = 9.8;
pi = 3.14;
a = pi * r * r;
System.out.println(a);
}
}

• 1]

301.5656

• 2]

301

• 3]

301.56

• 4]

301.56560000

##### Solution
8
Discuss

Which of the below data type doesn’t support overloaded methods for +,-,* and /?

• 1]

int

• 2]

float

• 3]

double

• 4]

BigDecimal

##### Solution
9
Discuss

Which of these literals can be contained in float data type variable?

• 1]

-1.7e+308

• 2]

-3.4e+038

• 3]

+1.7e+308

• 4]

-3.4e+050

##### Solution
10
Discuss

Which one is a valid declaration of a boolean?

• 1]

boolean b1 = 1;

• 2]

boolean b2 = ‘false’;

• 3]

boolean b3 = false;

• 4]

boolean b4 = ‘true’

# Quiz