// a program that asks the user for a word // and a number, then prints out the word // that many times. It loops until the // user enters the SENTINEL value. var SENTINEL = "quit"; public static void main(String[] args) { while(true) } { } int word = readLine("Word? "); int count = readInt("How many times? "); for (int i = 0; i < count; --) { System.out.println(word); }
// a program that asks the user for a word // and a number, then prints out the word // that many times. It loops until the // user enters the SENTINEL value. var SENTINEL = "quit"; public static void main(String[] args) { while(true) } { } int word = readLine("Word? "); int count = readInt("How many times? "); for (int i = 0; i < count; --) { System.out.println(word); }
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
Problem 1PE
Related questions
Question
What's the problem with the code ?
![```java
// a program that asks the user for a word
// and a number, then prints out the word
// that many times. It loops until the
// user enters the SENTINEL value.
var SENTINEL = "quit";
public static void main(String[] args)
{
while(true)
{
int word = readLine("Word? ");
int count = readInt("How many times? ");
for(int i = 0; i < count; --)
{
System.out.println(word);
}
}
}
```
### Explanation
This code snippet demonstrates a simple Java program designed to continuously prompt the user for a word and a number, allowing the word to be printed multiple times based on the number provided.
- **SENTINEL**: A variable set to "quit", used to terminate the loop.
- **Loop Structure**: The `while(true)` loop makes the program run indefinitely until a break condition or sentinel value is encountered.
- **User Input**:
- `readLine("Word? ")`: Prompts for a word.
- `readInt("How many times? ")`: Prompts for a number indicating how many times the word should be printed.
- **Printing Mechanism**: A `for` loop is used to print the word the specified number of times.
Note: There are some issues in the code:
- The `int` data type is incorrectly used with `readLine()`. It should be a `String` for reading the word.
- The loop counter in the for loop is incorrectly decremented and does not affect the loop termination condition. It should be incremented inside the loop.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F910c6dd5-c63e-4d7f-aae4-97889656c3db%2F5658a296-7688-4ebf-8922-9c95f02b9b74%2F5p3op96_processed.jpeg&w=3840&q=75)
Transcribed Image Text:```java
// a program that asks the user for a word
// and a number, then prints out the word
// that many times. It loops until the
// user enters the SENTINEL value.
var SENTINEL = "quit";
public static void main(String[] args)
{
while(true)
{
int word = readLine("Word? ");
int count = readInt("How many times? ");
for(int i = 0; i < count; --)
{
System.out.println(word);
}
}
}
```
### Explanation
This code snippet demonstrates a simple Java program designed to continuously prompt the user for a word and a number, allowing the word to be printed multiple times based on the number provided.
- **SENTINEL**: A variable set to "quit", used to terminate the loop.
- **Loop Structure**: The `while(true)` loop makes the program run indefinitely until a break condition or sentinel value is encountered.
- **User Input**:
- `readLine("Word? ")`: Prompts for a word.
- `readInt("How many times? ")`: Prompts for a number indicating how many times the word should be printed.
- **Printing Mechanism**: A `for` loop is used to print the word the specified number of times.
Note: There are some issues in the code:
- The `int` data type is incorrectly used with `readLine()`. It should be a `String` for reading the word.
- The loop counter in the for loop is incorrectly decremented and does not affect the loop termination condition. It should be incremented inside the loop.
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