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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```java
/*
 * Array Search
 */
package int2200.week7;
import java.util.Scanner;

public class arraySearch {
    public static void main(String[ ] args) {
        // create and initialize an array
        int[ ] numbers = {2, -9, 0, 5, 12, -25, 22, 9, 8, 12};
        int key;
        boolean foundit = false; // declare a variable and initialize it to false
        Scanner input = new Scanner(System.in);  // Create a Scanner object
        System.out.println("==> Array Search program  ");
        System.out.print("Enter a number to search for: ");
        key = input.nextInt();
        // access all elements using for each loop
        for (int i = 0; i< numbers.length ; i++) {
            if ( key == numbers [i]){
                foundit=true;
            }
        }
        if (foundit == true){
            System.out.println("found it! :)");
        }else {
            System.out.println("Sorry notfound it! :(");
        }
        System.out.println("==> End of the Search Program ");
    }
}

/*
==> Array Search program
Enter a number to search for: 2
found it! :)
==> End of the Search Program
*/
```

### Explanation:

This is a Java program designed to perform a simple search within an array of integers. Below is a detailed breakdown of its components:

1. **Package and Imports:**
   - The program is contained within the `int2200.week7` package.
   - It imports the `java.util.Scanner` class to allow user input.

2. **Main Class (`arraySearch`):**
   - The main class is named `arraySearch`.

3. **Main Method (`main`):**
   - The `main` method is the entry point of the program.
   - An array `numbers` is initialized with a set of integer values: `{2, -9, 0, 5, 12, -25, 22, 9, 8, 12}`.
   - A boolean variable `foundit` is declared and initialized to `false` to track if the searched number is found.

4. **User Input:**
   - A `Scanner` object named `input` is created to capture user input.
   - The program prompts
expand button
Transcribed Image Text:```java /* * Array Search */ package int2200.week7; import java.util.Scanner; public class arraySearch { public static void main(String[ ] args) { // create and initialize an array int[ ] numbers = {2, -9, 0, 5, 12, -25, 22, 9, 8, 12}; int key; boolean foundit = false; // declare a variable and initialize it to false Scanner input = new Scanner(System.in); // Create a Scanner object System.out.println("==> Array Search program "); System.out.print("Enter a number to search for: "); key = input.nextInt(); // access all elements using for each loop for (int i = 0; i< numbers.length ; i++) { if ( key == numbers [i]){ foundit=true; } } if (foundit == true){ System.out.println("found it! :)"); }else { System.out.println("Sorry notfound it! :("); } System.out.println("==> End of the Search Program "); } } /* ==> Array Search program Enter a number to search for: 2 found it! :) ==> End of the Search Program */ ``` ### Explanation: This is a Java program designed to perform a simple search within an array of integers. Below is a detailed breakdown of its components: 1. **Package and Imports:** - The program is contained within the `int2200.week7` package. - It imports the `java.util.Scanner` class to allow user input. 2. **Main Class (`arraySearch`):** - The main class is named `arraySearch`. 3. **Main Method (`main`):** - The `main` method is the entry point of the program. - An array `numbers` is initialized with a set of integer values: `{2, -9, 0, 5, 12, -25, 22, 9, 8, 12}`. - A boolean variable `foundit` is declared and initialized to `false` to track if the searched number is found. 4. **User Input:** - A `Scanner` object named `input` is created to capture user input. - The program prompts
### Java Program Exercise: Implementing a Do-While Loop

**Task:**

Modify the following Java program to achieve the specified output using a do-while loop.

**Requirements:**

- **Provide:**
  - Detailed documentation and the exact output as described.

**Hint:** 
A do-while loop is required for this task.

**Expected Program Output:**

```
==>> Array Search program
Enter a number to search for: 2
found it! :)
Enter any number to continue or number 0 to exit: 5
==>> Array Search program
Enter a number to search for: 6
Sorry not found it! :(
Enter any number to continue or number 0 to exit: 0
==>> End of the Search Program!
```

This task will help you understand the use of the do-while loop in a Java program. Make sure to provide the complete program with necessary comments explaining the logic for full understanding.
expand button
Transcribed Image Text:### Java Program Exercise: Implementing a Do-While Loop **Task:** Modify the following Java program to achieve the specified output using a do-while loop. **Requirements:** - **Provide:** - Detailed documentation and the exact output as described. **Hint:** A do-while loop is required for this task. **Expected Program Output:** ``` ==>> Array Search program Enter a number to search for: 2 found it! :) Enter any number to continue or number 0 to exit: 5 ==>> Array Search program Enter a number to search for: 6 Sorry not found it! :( Enter any number to continue or number 0 to exit: 0 ==>> End of the Search Program! ``` This task will help you understand the use of the do-while loop in a Java program. Make sure to provide the complete program with necessary comments explaining the logic for full understanding.
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