Quiz Discussion

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

Course Name: Java

• 1]

int

• 2]

float

• 3]

double

• 4]

BigDecimal

Solution
No Solution Present Yet

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# Quiz
1
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
2
Discuss

What is the base of BigDecimal data type?

• 1]

Base 2

• 2]

Base 8

• 3]

Base 10

• 4]

Base e

Solution
3
Discuss

Which of these values can a boolean variable contain?

• 1]

True & False

• 2]

0 & 1

• 3]

Any integer value

• 4]

True

Solution
4
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
5
Discuss

What is the output of this program?

public class mainclass {
public static void main(String args[])
{
char a = 'A';
a++;
System.out.print((int)a);
}
}

• 1]

66

• 2]

67

• 3]

65

• 4]

64

Solution
6
Discuss

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

• 1]

int

• 2]

float

• 3]

double

• 4]

long

Solution
7
Discuss

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);

• 1]

0.009999999999999998
0.01

• 2]

0.01
0.009999999999999998

• 3]

0.01
0.01

• 4]

0.009999999999999998
0.009999999999999998

Solution
8
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
9
Discuss

Which of the following are legal lines of Java code?

   1. int w = (int)888.8;
2. byte x = (byte)100L;
3. long y = (byte)100;
4. byte z = (byte)100L;
• 1]

1 and 2

• 2]

2 and 3

• 3]

3 and 4

• 4]

All statements are correct

Solution
10
Discuss

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

• 1]

Syntax

• 2]

Memory usage

• 3]

Garbage creation

• 4]

Precision

# Quiz