Questions: UNIT 2-CHALLENGE 2.2: Loops
What is wrong with the following code segment if the numbers from 1 to 10 are meant to be outputs?
```
int num = 1;
while (num > 0)
num = num + 1;
System.out.println(num);
```
a) The while loop is an infinite loop and will produce an error.
b) Nothing is printed in the while loop.
c) The variable should be initialized to 0.
d) The while expression should be evaluated with <
Transcript text: UNIT 2-CHALLENGE 2.2: Loops
What is wrong with the following code segment if the numbers from 1 to 10 are meant to be outputs?
```
int num = 1;
while (num > 0) {
num = num + 1;
System.out.println(num);
}
```
a) The while loop is an infinite loop and will produce an error.
b) Nothing is printed in the while loop.
c) The variable should be initialized to 0.
d) The while expression should be evaluated with <
Solution
Solution Steps
Step 1: Identify the Problem in the Code
The given code segment is:
int num = 1;
while (num > 0) {
num = num + 1;
System.out.println(num);
}
The goal is to output numbers from 1 to 10. However, the condition while (num > 0) will always be true since num is incremented indefinitely.
Step 2: Analyze the Loop Condition
The loop condition while (num > 0) causes an infinite loop because num starts at 1 and is always incremented by 1, making it always greater than 0.
Step 3: Correct the Loop Condition
To output numbers from 1 to 10, the loop condition should be while (num <= 10).
Final Answer
The correct answer is:
d) The while expression should be evaluated with <.