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9) What is the output of the following loop? int total = 27;

9) What is the output of the following loop? int total = 27;

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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### Educational Website Content #### Question 9 **What is the output of the following loop?** ```java int total = 27; for (int number = 1; number <= (total / 2); number++) { total = total - number; System.out.println(total + " " + number); } ``` **Explanation:** The given code snippet initializes an integer variable `total` with the value `27`. It then runs a for-loop from `1` to `total / 2` (which is `13` since integer division truncates the decimal). Within the loop: 1. The current value of `number` is subtracted from `total`. 2. The updated value of `total` and the current value of `number` are printed on the same line. Here's a step-by-step breakdown of each iteration: 1. **Iteration 1:** - `number = 1` - `total = total - 1` → `total = 26` - Output: `26 1` 2. **Iteration 2:** - `number = 2` - `total = total - 2` → `total = 24` - Output: `24 2` 3. **Iteration 3:** - `number = 3` - `total = total - 3` → `total = 21` - Output: `21 3` 4. **Iteration 4:** - `number = 4` - `total = total - 4` → `total = 17` - Output: `17 4` 5. **Iteration 5:** - `number = 5` - `total = total - 5` → `total = 12` - Output: `12 5` 6. **Iteration 6:** - `number = 6` - `total = total - 6` → `total = 6` - Output: `6 6` 7. **Iteration 7:** - `number = 7` - Since `number` becomes `7`, the loop condition `number <= (total / 2)` translates to `7 <= 6`, which is false, hence the loop terminates. Therefore, the printed output will be: ``` 26 1 24
Transcribed Image Text:### Educational Website Content #### Question 9 **What is the output of the following loop?** ```java int total = 27; for (int number = 1; number <= (total / 2); number++) { total = total - number; System.out.println(total + " " + number); } ``` **Explanation:** The given code snippet initializes an integer variable `total` with the value `27`. It then runs a for-loop from `1` to `total / 2` (which is `13` since integer division truncates the decimal). Within the loop: 1. The current value of `number` is subtracted from `total`. 2. The updated value of `total` and the current value of `number` are printed on the same line. Here's a step-by-step breakdown of each iteration: 1. **Iteration 1:** - `number = 1` - `total = total - 1` → `total = 26` - Output: `26 1` 2. **Iteration 2:** - `number = 2` - `total = total - 2` → `total = 24` - Output: `24 2` 3. **Iteration 3:** - `number = 3` - `total = total - 3` → `total = 21` - Output: `21 3` 4. **Iteration 4:** - `number = 4` - `total = total - 4` → `total = 17` - Output: `17 4` 5. **Iteration 5:** - `number = 5` - `total = total - 5` → `total = 12` - Output: `12 5` 6. **Iteration 6:** - `number = 6` - `total = total - 6` → `total = 6` - Output: `6 6` 7. **Iteration 7:** - `number = 7` - Since `number` becomes `7`, the loop condition `number <= (total / 2)` translates to `7 <= 6`, which is false, hence the loop terminates. Therefore, the printed output will be: ``` 26 1 24
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