The correct answer is D. nested loop.
A nested loop is a loop that is inside another loop. In other words, it is a loop that is executed within another loop. Nested loops are often used to iterate over two or more data sets at the same time.
For example, let’s say you want to print out all the numbers from 1 to 100. You could do this with a single loop:
for (int i = 1; i <= 100; i++) {
System.out.println(i);
}
However, if you also wanted to print out all the even numbers from 1 to 100, you could use a nested loop:
for (int i = 1; i <= 100; i++) {
if (i % 2 == 0) {
System.out.println(i);
}
}
In this example, the outer loop iterates from 1 to 100. The inner loop iterates only when the condition i % 2 == 0 is true, which is when i is an even number. This means that the inner loop will only be executed for the even numbers from 1 to 100.
Nested loops can be used to solve a variety of problems. They can be used to iterate over two or more data sets at the same time, to perform calculations on multiple data sets, and to control the flow of execution in a program.
The other options are not correct.
- Option A, select case control, is a control structure that is used to select one of several possible statements to execute based on the value of a variable.
- Option B, next, is a statement that is used to skip the next iteration of a loop.
- Option C, if condition, is a control structure that is used to execute a statement if a condition is true.