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What will be the output of the following code?
int[] array = {5, 10, 15, 20};
int target = 15;
int index = -1;
for (int i = 0; i < array.length; i++) {
if (array[i] == target) {
index = i;
break;
}
}
System.out.println(index);
int[] array = {5, 10, 15, 20};
int target = 15;
int index = -1;
for (int i = 0; i < array.length; i++) {
if (array[i] == target) {
index = i;
break;
}
}
System.out.println(index);
- a)2
- b)3
- c)-1
- d)Compiler error
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
What will be the output of the following code?int[] array = {5, 10, 15...
Explanation:
Initialization:
- An integer array named `array` is initialized with values {5, 10, 15, 20}.
- An integer variable named `target` is initialized with value 15.
- An integer variable named `index` is initialized with -1.
Loop and Condition:
- A for loop iterates over the elements of the array.
- Inside the loop, it checks if the current element in the array is equal to the target value.
- If the condition is true, it assigns the index of the element to the `index` variable and breaks out of the loop using the `break` statement.
Output:
- In the given array, the element with value 15 is present at index 2 (0-based indexing).
- So, the value of `index` variable becomes 2.
- The output of the code will be 2 when `System.out.println(index);` is executed.
Therefore, the correct output of the code is 2.
Initialization:
- An integer array named `array` is initialized with values {5, 10, 15, 20}.
- An integer variable named `target` is initialized with value 15.
- An integer variable named `index` is initialized with -1.
Loop and Condition:
- A for loop iterates over the elements of the array.
- Inside the loop, it checks if the current element in the array is equal to the target value.
- If the condition is true, it assigns the index of the element to the `index` variable and breaks out of the loop using the `break` statement.
Output:
- In the given array, the element with value 15 is present at index 2 (0-based indexing).
- So, the value of `index` variable becomes 2.
- The output of the code will be 2 when `System.out.println(index);` is executed.
Therefore, the correct output of the code is 2.
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Community Answer
What will be the output of the following code?int[] array = {5, 10, 15...
The code searches for the index of the 'target' value in the 'array'. It starts with an initial index of -1 and iterates through the array, checking if each element is equal to the target value. If a match is found, the index is updated and the loop breaks. The final index is printed, which is 2.
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