What is the output of the following Java code?

medium📝 Predict Output Q13 of 15

Java - Arrays

int[] nums = {1, 2, 3, 4, 5};
int sum = 0;
for (int i = 0; i < nums.length; i++) {
    sum += nums[i];
}
System.out.println(sum);

A15

B10

Step-by-Step Solution

Solution:

Step 1: Understand the array and loop
The array nums contains 1, 2, 3, 4, 5. The loop runs from i=0 to i=4 (nums.length is 5).
Step 2: Calculate the sum of all elements
sum = 0 + 1 + 2 + 3 + 4 + 5 = 15.
Final Answer:
15 -> Option A
Quick Check:
Sum of 1 to 5 = 15 [OK]

Quick Trick: Sum array by adding all elements in a loop [OK]

Common Mistakes:

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