MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Java knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the signature of Math.random() method? |
| A. | public static double random() |
| B. | public void double random() |
| C. | public static int random() |
| D. | public void int random() |
| Answer» B. public void double random() | |
| 2. |
Math.random() guarantees uniqueness? |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
How many bits are used for generating random numbers? |
| A. | 32 |
| B. | 64 |
| C. | 48 |
| D. | 8 |
| Answer» D. 8 | |
| 4. |
What is the range of numbers returned by Math.random() method? |
| A. | -1.0 to 1.0 |
| B. | -1 to 1 |
| C. | 0 to 100 |
| D. | 0.0 to 1.0 |
| Answer» E. | |
| 5. |
What is the return type of Math.random() method? |
| A. | Integer |
| B. | Double |
| C. | String |
| D. | Boolean |
| Answer» C. String | |
| 6. |
Which method is used to generate boolean random values in java? |
| A. | nextBoolean() |
| B. | randomBoolean() |
| C. | previousBoolean() |
| D. | generateBoolean() |
| Answer» B. randomBoolean() | |
| 7. |
Which class is used to generate random number? |
| A. | java.lang.Object |
| B. | java.util.randomNumber |
| C. | java.util.Random |
| D. | java.util.Object |
| Answer» D. java.util.Object | |
| 8. |
RANDOM_NUMBER_BETWEEN_4_TO_7,_INCLUDING_4_AND_7?$ |
| A. | Random number between 4 to 7, excluding 4 and 7 |
| B. | Random number between 4 to 10, excluding 4 and 10 |
| C. | Random number between 4 to 10, including 4 and 10 |
| Answer» B. Random number between 4 to 10, excluding 4 and 10 | |
| 9. |
Random is a final class? |
| A. | True |
| B. | False |
| Answer» C. | |