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What is the correct way to declare and initialize an array in Java?
- a)int arr[] = new int[5];
- b)int[] arr = new int[5];
- c)int arr[5] = new int[];
- d)int[] arr = new int[]{1, 2, 3, 4, 5};
Correct answer is option 'B'. Can you explain this answer?
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What is the correct way to declare and initialize an array in Java?a)i...
The correct syntax for declaring and initializing an array in Java is to use "int[] arr = new int[5];".
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What is the correct way to declare and initialize an array in Java?a)i...
Correct way to declare and initialize an array in Java
The correct way to declare and initialize an array in Java is option 'B':
Explanation:
When declaring and initializing an array in Java, there are a few rules to follow. Let's break down the correct way to declare and initialize an array in Java using option 'B':
1. Declare the array type: The first step is to declare the array type. In this case, we want to create an array of integers, so we use the
2. Specify the array name: Next, we specify the name of the array. In this example, we use the name "arr".
3. Use square brackets to indicate an array: To indicate that it is an array, we use square brackets after the array name. In this case, we use
4. Assign a new array: To initialize the array, we use the
Putting it all together, the correct way to declare and initialize an array of integers in Java is:
This creates an integer array named "arr" with a size of 5, where each element is initialized with the default value of 0.
Other options:
- Option 'A' (
- Option 'C' (
- Option 'D' (
The correct way to declare and initialize an array in Java is option 'B':
int[] arr = new int[5];Explanation:
When declaring and initializing an array in Java, there are a few rules to follow. Let's break down the correct way to declare and initialize an array in Java using option 'B':
1. Declare the array type: The first step is to declare the array type. In this case, we want to create an array of integers, so we use the
int keyword.2. Specify the array name: Next, we specify the name of the array. In this example, we use the name "arr".
3. Use square brackets to indicate an array: To indicate that it is an array, we use square brackets after the array name. In this case, we use
[] after "arr".4. Assign a new array: To initialize the array, we use the
new keyword followed by the array type and the desired size of the array in square brackets. In this example, we use new int[5] to create an array of integers with a size of 5.Putting it all together, the correct way to declare and initialize an array of integers in Java is:
int[] arr = new int[5];This creates an integer array named "arr" with a size of 5, where each element is initialized with the default value of 0.
Other options:
- Option 'A' (
int arr[] = new int[5];) is also syntactically correct in Java, but it is generally recommended to use option 'B' for better readability and consistency.- Option 'C' (
int arr[5] = new int[];) is incorrect because the size of the array should be specified before the array name, not inside the square brackets.- Option 'D' (
int[] arr = new int[]{1, 2, 3, 4, 5};) is a valid way to declare and initialize an array with specific values. However, it is not the same as initializing an array with a specific size, as in the given question.Attention EmSAT Achieve Students!
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What is the correct way to declare and initialize an array in Java?a)int arr[] = new int[5];b)int[] arr = new int[5];c)int arr[5] = new int[];d)int[] arr = new int[]{1, 2, 3, 4, 5};Correct answer is option 'B'. Can you explain this answer?
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