Question

What is the output of the following code?

int num=25;
if (num > 5)
System.out.print(num + " ");
num += 10;
}
if (num > 30){
System.out.print(num + " ");
num += 5;
}
if (num > 45 ) {
System.out.print(num);
}​

Answer 1

The code outputs '25 35 ', checking the variable 'num' against several conditions and printing it after each conditional increment.

Step-by-step explanation:

The student asked what the output of a piece of Java code would be. The code increments the variable num based on certain conditions and then prints it out. Initially, num is set to 25, and then the code runs through a series of if-conditions to determine what the output will be:

1. If num is greater than 5, print num and add 10 to it. Since 25 is greater than 5, it prints '25 ' and num becomes 35.
2. Then it checks if num is now greater than 30, which it is, so it prints '35 ' and num becomes 40.
3. Finally, it checks if num is greater than 45, which it is not, so it does not print anything further.

The full output of the code is '25 35 '.

Answer 2

25 35

Step-by-step explanation:

First if checks if num is greater than 25, it is so it prints 25 with a space after and adds 10 to num (num is now 35)

Then it checks if num is greater than 30, it is, so it prints 35 with a space after and adds 5 to num (num is now 40)

Lastly, it checks if num is greater than 45, it is not, so the program terminates with output: "25 35 " (note the space at the end)