How do you check if an element exists in an array or ArrayList in Java?
A. Use the find() method.
B. Use the search() method.
C. Use the contains() method.
D. Use the exists() method.
Answer: Option C
This Question Belongs to Java Program >> Array
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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