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

Solution
# Quiz