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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Complete the following
Transcribed Image Text:This is a Java program designed to convert units of measurement. Below is the detailed transcription of the code and an explanation of its functionality.
### UnitConverter.java
```java
import java.util.Scanner;
public class UnitConverter {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
boolean done = false;
double factor1 = 1;
double factor2 = 1;
String unit1 = "";
String unit2 = "";
while (!done) {
boolean getSecond = true;
System.out.print("From unit (in, cm, m, again, quit): ");
String command = in.next();
if (command.equals("in")) {
factor1 = 2.54; // Convert to cm
unit1 = command;
} else if (command.equals("cm")) {
// Add conversion logic here for cm
} else if (command.equals("m")) {
// Add conversion logic here for m
} else if (command.equals("again")) {
getSecond = false;
} else if (command.equals("quit")) {
done = true;
getSecond = false;
} else {
System.out.println("Sorry, unknown unit.");
getSecond = false;
}
if (getSecond) {
System.out.print("To unit: ");
unit2 = in.next();
if (unit2.equals("in")) {
factor2 = 2.54; // Convert from cm
} else {
// Add conversion logic here for other units
}
if (/* condition to check valid conversion */) { // Replace with actual condition
double value = in.nextDouble();
double result = value * factor1 / factor2;
System.out.println(value + " " + unit1 + " = " + result + " " + unit2);
}
}
}
}
}
```
### Explanation:
1. **Imports and Class Declaration**
```java
import java.util.Scanner;
public class UnitConverter {
```
- The program begins by importing the `Scanner` class for reading user inputs.
- The `UnitConverter` class is declared as public.
2. **Main Method**
```java
public static void main(String[] args) {
```
- The `main` method is the entry point of the program.
3
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