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What will be the output of the following code?
public class Test {
    public static void main(String[] args) {
        int[] numbers = {1, 2, 3, 4, 5};
        changeArray(numbers);
        System.out.println(numbers[0]);
    }
    
    public static void changeArray(int[] arr) {
        arr[0] = 10;
    }
}
  • a)
    1
  • b)
    2
  • c)
    3
  • d)
    10
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
What will be the output of the following code?public class Test { pub...
Explanation:
The given code defines a class named "Test" with a main method. Inside the main method, an integer array named "numbers" is declared and initialized with the values {1, 2, 3, 4, 5}. Then, the method "changeArray" is called with the array "numbers" as the argument. Finally, the value at index 0 of the array "numbers" is printed.

Step-by-step execution:
1. The array "numbers" is declared and initialized with the values {1, 2, 3, 4, 5}.
2. The "changeArray" method is called with the array "numbers" as the argument.
3. Inside the "changeArray" method, the value at index 0 of the array "arr" is changed to 10.
4. Control returns to the main method.
5. The value at index 0 of the array "numbers" is printed, which is now 10.

Explanation:
The array "numbers" is passed as an argument to the "changeArray" method. In Java, arrays are passed by reference, which means that any changes made to the array inside the method will affect the original array.

Conclusion:
Therefore, when the value at index 0 of the array "arr" is changed to 10 inside the "changeArray" method, it also changes the value at index 0 of the array "numbers" in the main method. As a result, the output of the code is 10.
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Community Answer
What will be the output of the following code?public class Test { pub...
Arrays are passed by reference in Java, so modifying the array inside the changeArray method affects the original array. Therefore, the output is 10, making option d the correct choice.
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What will be the output of the following code?public class Test { public static void main(String[] args) { int[] numbers = {1, 2, 3, 4, 5}; changeArray(numbers); System.out.println(numbers[0]); } public static void changeArray(int[] arr) { arr[0] = 10; }}a)1b)2c)3d)10Correct answer is option 'D'. Can you explain this answer?
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What will be the output of the following code?public class Test { public static void main(String[] args) { int[] numbers = {1, 2, 3, 4, 5}; changeArray(numbers); System.out.println(numbers[0]); } public static void changeArray(int[] arr) { arr[0] = 10; }}a)1b)2c)3d)10Correct answer is option 'D'. Can you explain this answer? for EmSAT Achieve 2024 is part of EmSAT Achieve preparation. The Question and answers have been prepared according to the EmSAT Achieve exam syllabus. Information about What will be the output of the following code?public class Test { public static void main(String[] args) { int[] numbers = {1, 2, 3, 4, 5}; changeArray(numbers); System.out.println(numbers[0]); } public static void changeArray(int[] arr) { arr[0] = 10; }}a)1b)2c)3d)10Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for EmSAT Achieve 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What will be the output of the following code?public class Test { public static void main(String[] args) { int[] numbers = {1, 2, 3, 4, 5}; changeArray(numbers); System.out.println(numbers[0]); } public static void changeArray(int[] arr) { arr[0] = 10; }}a)1b)2c)3d)10Correct answer is option 'D'. Can you explain this answer?.
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