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Which of the following statements about multidimensional arrays in Java is true?
- a)Multidimensional arrays are not supported in Java.
- b)Multidimensional arrays can have different lengths for each dimension.
- c)Multidimensional arrays can only have two dimensions.
- d)Multidimensional arrays cannot store primitive data types.
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Which of the following statements about multidimensional arrays in Jav...
Introduction:
Multidimensional arrays are a fundamental concept in programming languages, including Java. They allow us to store and manipulate data in a structured manner. In Java, multidimensional arrays can have different lengths for each dimension, which makes them highly flexible and versatile.
Explanation:
1. Multidimensional arrays in Java:
- Multidimensional arrays are supported in Java and are commonly used to store and manipulate data in multiple dimensions.
- Unlike one-dimensional arrays, which are like a list of elements, multidimensional arrays are like tables or matrices with rows and columns.
- Each element in a multidimensional array is accessed using multiple indices.
2. Different lengths for each dimension:
- One of the key advantages of multidimensional arrays in Java is that they can have different lengths for each dimension.
- This means that the number of elements in each dimension can vary, allowing for more flexibility in storing and manipulating data.
- For example, a two-dimensional array can have a different number of columns for each row.
3. Example:
- Let's consider an example of a two-dimensional array that represents a matrix:
```
int[][] matrix = new int[3][];
matrix[0] = new int[2]; // First row has 2 columns
matrix[1] = new int[3]; // Second row has 3 columns
matrix[2] = new int[4]; // Third row has 4 columns
```
- In this example, we have a two-dimensional array with three rows, where each row can have a different number of columns.
- The first row has 2 columns, the second row has 3 columns, and the third row has 4 columns.
4. Benefits of different lengths:
- The ability to have different lengths for each dimension provides great flexibility in representing and manipulating complex data structures.
- It allows us to efficiently store and access data that may not have a uniform structure.
- For example, if we want to represent a sparse matrix with varying numbers of elements in each row, a multidimensional array with different lengths for each dimension is the most suitable choice.
Conclusion:
In Java, multidimensional arrays are supported, and one of the key advantages is that they can have different lengths for each dimension. This flexibility allows for efficient storage and manipulation of complex data structures.
Multidimensional arrays are a fundamental concept in programming languages, including Java. They allow us to store and manipulate data in a structured manner. In Java, multidimensional arrays can have different lengths for each dimension, which makes them highly flexible and versatile.
Explanation:
1. Multidimensional arrays in Java:
- Multidimensional arrays are supported in Java and are commonly used to store and manipulate data in multiple dimensions.
- Unlike one-dimensional arrays, which are like a list of elements, multidimensional arrays are like tables or matrices with rows and columns.
- Each element in a multidimensional array is accessed using multiple indices.
2. Different lengths for each dimension:
- One of the key advantages of multidimensional arrays in Java is that they can have different lengths for each dimension.
- This means that the number of elements in each dimension can vary, allowing for more flexibility in storing and manipulating data.
- For example, a two-dimensional array can have a different number of columns for each row.
3. Example:
- Let's consider an example of a two-dimensional array that represents a matrix:
```
int[][] matrix = new int[3][];
matrix[0] = new int[2]; // First row has 2 columns
matrix[1] = new int[3]; // Second row has 3 columns
matrix[2] = new int[4]; // Third row has 4 columns
```
- In this example, we have a two-dimensional array with three rows, where each row can have a different number of columns.
- The first row has 2 columns, the second row has 3 columns, and the third row has 4 columns.
4. Benefits of different lengths:
- The ability to have different lengths for each dimension provides great flexibility in representing and manipulating complex data structures.
- It allows us to efficiently store and access data that may not have a uniform structure.
- For example, if we want to represent a sparse matrix with varying numbers of elements in each row, a multidimensional array with different lengths for each dimension is the most suitable choice.
Conclusion:
In Java, multidimensional arrays are supported, and one of the key advantages is that they can have different lengths for each dimension. This flexibility allows for efficient storage and manipulation of complex data structures.
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Which of the following statements about multidimensional arrays in Jav...
In Java, multidimensional arrays can have different lengths for each dimension, allowing you to create irregular or jagged arrays.
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Which of the following statements about multidimensional arrays in Java is true?a)Multidimensional arrays are not supported in Java.b)Multidimensional arrays can have different lengths for each dimension.c)Multidimensional arrays can only have two dimensions.d)Multidimensional arrays cannot store primitive data types.Correct answer is option 'B'. Can you explain this answer?
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