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

Divide input integers

# 2.18 LAB: Divide Input Integers

## Objective:
Write a program using integers `userNum` and `divNum` as input, and output `userNum` divided by `divNum` three times. Note: End with a newline.

### Example:
#### If the input is:
```
2000 2
```

#### The output is:
```
1000 500 250
```
### Note:
In Java, integer division discards fractions. For example, `6 / 4` is `1` (the `0.5` is discarded).

---

## Lab Activity: 2.18.1 LAB. Divide Input Integers

### Provided Code:
```java
import java.util.Scanner;

public class LabProgram {
    public static void main(String[] args) {
        int dividend = userNum;
    }
}
```

This code initializes a scanner to read input from the user and sets up the main class and method where you will enter your code. It also declares an integer variable `dividend` and assigns it the value of `userNum`.

You need to complete the code to achieve the desired functionality as explained above.
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Transcribed Image Text:# 2.18 LAB: Divide Input Integers ## Objective: Write a program using integers `userNum` and `divNum` as input, and output `userNum` divided by `divNum` three times. Note: End with a newline. ### Example: #### If the input is: ``` 2000 2 ``` #### The output is: ``` 1000 500 250 ``` ### Note: In Java, integer division discards fractions. For example, `6 / 4` is `1` (the `0.5` is discarded). --- ## Lab Activity: 2.18.1 LAB. Divide Input Integers ### Provided Code: ```java import java.util.Scanner; public class LabProgram { public static void main(String[] args) { int dividend = userNum; } } ``` This code initializes a scanner to read input from the user and sets up the main class and method where you will enter your code. It also declares an integer variable `dividend` and assigns it the value of `userNum`. You need to complete the code to achieve the desired functionality as explained above.
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Follow-up Question

This isn't not working for me.

import java.util.Scanner;

public class LabProgram {
   public static void main(String[] args) {
   Scanner scnr = new Scanner(System.in);
   int userNum = in.nextInt();
   int divNum = in.nextInt();
   
   System.out.print("What is the user number?");
   userNum = scnr.nextInt();
   
   int a, b, c;
   a = userNum/divNum;
   System.out.println(a);
   b = a/divNum;
   System.out.println(b);
   c = b/divNum;
   System.out.println(c);
   
   }
}

 

ERROR

LabProgram.java:6: error: cannot find symbol int userNum = in.nextInt(); ^ symbol: variable in location: class LabProgram LabProgram.java:7: error: cannot find symbol int divNum = in.nextInt(); ^ symbol: variable in location: class LabProgram 2 errors

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Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question

This isn't not working for me.

import java.util.Scanner;

public class LabProgram {
   public static void main(String[] args) {
   Scanner scnr = new Scanner(System.in);
   int userNum = in.nextInt();
   int divNum = in.nextInt();
   
   System.out.print("What is the user number?");
   userNum = scnr.nextInt();
   
   int a, b, c;
   a = userNum/divNum;
   System.out.println(a);
   b = a/divNum;
   System.out.println(b);
   c = b/divNum;
   System.out.println(c);
   
   }
}

 

ERROR

LabProgram.java:6: error: cannot find symbol int userNum = in.nextInt(); ^ symbol: variable in location: class LabProgram LabProgram.java:7: error: cannot find symbol int divNum = in.nextInt(); ^ symbol: variable in location: class LabProgram 2 errors

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