Array MCQs with Answers 2027

Q41

What would be the result of attempting to compile and run the following code?

public class HelloWorld{
      public static void main(String[] args){
            double[] x = new double[]{1, 2, 3};
            System.out.println("Value is " + x[1]);
      }
}

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Q42

Open question

Which will legally declare, construct, and initialize an array?

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Q43

Open question

What will be the output of the program?

public class Test{
      public static void main(String [] args){
            String s1 = args[1];
            String s2 = args[2];
            String s3 = args[3];
            String s4 = args[4];
            System.out.print(" args[2] = " + s2);
      }
}

and the command-line invocation is C:Java> java Test 1 2 3 4

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Q44

Open question

What is the value of a[1] after the following code is executed?

int[] a = {0, 2, 4, 1, 3};
for(int i = 0; i < a.length; i++)
a[i] = a[(a[i] + 3) % a.length];

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Q45

Open question

Predict the output:

public class Test{
public static void main(String... args){
            int[] index = new int[5];
            System.out.println(index instanceof Object);
      }
}

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Q46

Open question

Which of these operators is used to allocate memory to array variable in Java?

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Q47

Open question

Which of these is an incorrect array declaration?

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Q48

Open question

What will be the output of the following Java code?

int arr[] = new int [5];
System.out.print(arr);

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Q49

Open question

What will be the output of the following Java code?

class array_output 
{
    public static void main(String args[]) 
    {
        int array_variable [] = new int[10];
  for (int i = 0; i < 10; ++i) 
        {
            array_variable[i] = i;
            System.out.print(array_variable[i] + " ");
            i++;
        }
    } 
}

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Q50

Open question

What will be the output of the following Java code?

class evaluate 
{
    public static void main(String args[]) 
        {
      int arr[] = new int[] {0 , 1, 2, 3, 4, 5, 6, 7, 8, 9};
      int n = 6;
            n = arr[arr[n] / 2];
      System.out.println(arr[n] / 2);
        } 
}

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Q51

Open question

What will be the output of the following Java code?

class array_output 
{
    public static void main(String args[]) 
    {
        char array_variable [] = new char[10];
  for (int i = 0; i < 10; ++i) 
        {
            array_variable[i] = 'i';
            System.out.print(array_variable[i] + "");
        }
    } 
}

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Q52

Open question

What will be the output of the following Java code?

class multidimention_array 
{
    public static void main(String args[])
    {
        int arr[][] = new int[3][];
        arr[0] = new int[1];
        arr[1] = new int[2];
        arr[2] = new int[3];               
  int sum = 0;
  for (int i = 0; i < 3; ++i) 
      for (int j = 0; j < i + 1; ++j)
                arr[i][j] = j + 1;
  for (int i = 0; i < 3; ++i) 
      for (int j = 0; j < i + 1; ++j)
                sum + = arr[i][j];
  System.out.print(sum); 	
    } 
}

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Q53

Open question

Which of these is necessary to specify at time of array initialization?

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Q54

Open question

What will be the output of the following Java code?

class array_output 
{
    public static void main(String args[]) 
    {
        int array_variable[][] = {{ 1, 2, 3}, { 4 , 5, 6}, { 7, 8, 9}};
        int sum = 0;
        for (int i = 0; i < 3; ++i)
            for (int j = 0; j <  3 ; ++j)
                sum = sum + array_variable[i][j];
        System.out.print(sum / 5);
    } 
}

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Q55

Open question

Which of these is an incorrect Statement?

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