Which correctly creates an array of five empty Strings? You Answered String[] a = new String [5]; Correct answer String[] a = {"", "", "", "", ""}; String[5] a; String[ ] a = new String [5]; for (int i = 0; i < 5; a[i++] = null);
Question
Which correctly creates an array of five empty Strings? You Answered String[] a = new String [5]; Correct answer String[] a = {"", "", "", "", ""}; String[5] a; String[ ] a = new String [5]; for (int i = 0; i < 5; a[i++] = null);
Solution
The correct way to create an array of five empty Strings in Java is:
String[] a = new String[5];
This creates an array of Strings with a length of 5. By default, each element in the array is initialized to null. If you want to initialize each element to an empty string, you can do so with a loop:
String[] a = new String[5];
for (int i = 0; i < a.length; i++) {
a[i] = "";
}
The answer String[] a = {"", "", "", "", ""}; is also correct. This creates and initializes an array of Strings with a length of 5, where each element is an empty string.
The answer String[5] a; is incorrect. In Java, the size of the array should be specified when it is created, not in the type declaration.
The answer String[ ] a = new String [5]; for (int i = 0; i < 5; a[i++] = null); is unnecessary because when you create an array in Java, each element is automatically initialized to a default value (null for objects, 0 for integers, false for booleans, etc.). So there is no need to explicitly set each element to null.
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