Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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The language is Java. The chapter this is in is on looping.

 

Forms often allow a user to enter an integer. Write a program that takes in a string representing an integer as input, and outputs yes if every character is a digit 0–9.

**Example 1:**
- If the input is:
  ```
  1995
  ```
  the output is:
  ```
  yes
  ```

**Example 2:**
- If the input is:
  ```
  42,000
  ```
  or
  ```
  1995!
  ```
  the output is:
  ```
  no
  ```

**Hint:** Use a loop and the `Character.isDigit()` function.
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Transcribed Image Text:Forms often allow a user to enter an integer. Write a program that takes in a string representing an integer as input, and outputs yes if every character is a digit 0–9. **Example 1:** - If the input is: ``` 1995 ``` the output is: ``` yes ``` **Example 2:** - If the input is: ``` 42,000 ``` or ``` 1995! ``` the output is: ``` no ``` **Hint:** Use a loop and the `Character.isDigit()` function.
```java
import java.util.Scanner;

public class LabProgram {
    public static void main(String[] args) {
    }
}
```

This code snippet describes a basic structure of a Java program. It includes the import statement, which allows the program to use the `Scanner` class from the `java.util` package. This is typically used for getting user input, although in this specific snippet, the `Scanner` is not yet utilized.

The program defines a public class named `LabProgram`. Within this class, there is a `main` method, which is the entry point for any Java application. Currently, the `main` method does not execute any operations or contain any statements.
expand button
Transcribed Image Text:```java import java.util.Scanner; public class LabProgram { public static void main(String[] args) { } } ``` This code snippet describes a basic structure of a Java program. It includes the import statement, which allows the program to use the `Scanner` class from the `java.util` package. This is typically used for getting user input, although in this specific snippet, the `Scanner` is not yet utilized. The program defines a public class named `LabProgram`. Within this class, there is a `main` method, which is the entry point for any Java application. Currently, the `main` method does not execute any operations or contain any statements.
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