What will be the output?
public class Test{
public static void main(String[] args){
int[] x = new int[3];
System.out.println("x[0] is " + x[0]);
}
}
public class Test{
public static void main(String[] args){
int[] x = new int[3];
System.out.println("x[0] is " + x[0]);
}
}
A. The program has a compile error because the size of the array wasn't specified when declaring the array.
B. The program has a runtime error because the array elements are not initialized.
C. The program runs fine and displays x[0] is 0.
D. The program has a runtime error because the array element x[0] is not defined.
Answer: Option C
Solution(By Examveda Team)
Program is syntactically correct, so no error.
In java, if the array is not initialized at the time of declaration and creation then all the elements of the array are initialized to 0 by default.
In Java, arrays are objects of which class?
A. Array
B. Collection
C. ArrayList
D. None of the above
How do you declare a one-dimensional array in Java?
A. int[] myArray;
B. int myArray[];
C. Array
D. All of the above
What is the default initial value of numeric elements in an array of type int in Java?
A. 0
B. 1
C. -1
D. Null
What is the correct way to initialize a two-dimensional array in Java?
A. int[][] myArray = {{1, 2}, {3, 4}};
B. int[2][2] myArray = {{1, 2}, {3, 4}};
C. int[2][2] myArray; myArray[0][0] = 1; myArray[0][1] = 2; myArray[1][0] = 3; myArray[1][1] = 4;
D. None of the above
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