Answer 2

Pseudo-code:

• START
• Input length
• Input width
• area = length * width
• If area > 0, then:
• Output "The area is positive"
• Else:
• Output "The area is zero or negative"
• END

Explanation: The pseudo-code accurately reflects the structured English. It uses the same variable names and follows the same logical flow. The 'if' statement is implemented using a conditional check for positivity.

Here's a Java solution:

import java.util.Arrays;
class Solution {
/**
Calculates the sum of all elements in a 2D integer array.
*
@param array The 2D integer array.
@return The sum of all elements, or 0 if the array is null or empty.
*/
public static int sum2DArray(int[][] array) {
if (array == null || array.length == 0) {
return 0; // Handle null or empty array
}
return Arrays.stream(Arrays.stream(array).flatMapToInt(java.util.Arrays::stream).sum());
}
public static void main(String[] args) {
int[][] array1 = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
System.out.println("Sum of array1: " + sum2DArray(array1));
int[][] array2 = {};
System.out.println("Sum of array2: " + sum2DArray(array2));
int[][] array3 = null;
System.out.println("Sum of array3: " + sum2DArray(array3));
}
}

Explanation:

• The sum2DArray() function takes a 2D integer array as input.
• It first checks if the array is null or empty. If it is, it returns 0.
• It uses Arrays.stream() to create a stream of rows.
• For each row, it uses flatMapToInt() to create a stream of individual integers.
• Finally, it uses the sum() method to calculate the sum of all the integers in the stream.

Pseudo-code:

• Declare a variable named age with the data type integer and assign it the value 0.
• Declare a variable named score with the data type integer and assign it the value 0.
• Declare a variable named attempts with the data type integer and assign it the value 0.

Example: