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Java arrays

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by Dr. Osama M. Khaled — last modified 2022-07-19T04:23:41+00:00

Array is an important structure in programming language and Java programming language no difference

Questions #: 4

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Pass Score: 80.0%

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Is the following array defined as null or with 0 length?

int temp_array[];

Null

zero length

POINTS (1)

Correct Answer

Explanation

What is the correct array initialization from the following?

temp_array[]

array temp_array[]

int temp_array[];

array temp_array[]

POINTS (1)

Correct Answer

Explanation

Is the following code correct?

Verify the following code and check if there is something wrong

public class MyClass {
  public static void main(String[] args) {
    int[] myNumbers = {"1", "2", "3", "4"};
    for (int i = 0; i < myNumbers.length; ++i) {
        System.out.println(myNumbers[i]);
    }
  }
}

Nothing wrong with the code

Loop will through an exception

Array initialization is not correct

Main method cannot be inside a class

POINTS (1)

Correct Answer

Explanation

What is the the output of the following code snippet?

public class MyClass {
  public static void main(String[] args) {
    int[] myNumbers = {1, 2, 3, 4};
    System.out.println(myNumbers[1])
  }
}

Missing

POINTS (1)

Correct Answer

Explanation

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