Скачать или смотреть #16 Java Interview Question | What is the Default Value of int Array? 🤔 | Output Explained

Java Interview Question | What is the Default Value of int Array? 🤔 | Output Explained

In this video, we are solving an important Java Interview Question:
👉 What will this program print?

public class Test {
public static void main(String[] args) {
int arr[] = new int[5];
System.out.println(arr[0]);
}
}

✅ Explanation:

In Java, when we create an array of primitive types, all elements are initialized with their default values.

For int, the default value is 0.

So, even though we didn’t assign anything to arr[0], it will automatically store 0.

Hence, the output of the program is:


0

💡 Key Point for Interviews:

Default values in Java:

int → 0

float → 0.0

double → 0.0

boolean → false

char → \u0000 (null character)

Reference types (like String, Object) → null



👉 This concept is frequently asked in Java technical interviews to test your understanding of array initialization and default values.


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