Write a program that reads a five digit integer number from the keyboard, and then constructs
the largest possible integer number with the digits of the entered number. Your program should
have only one class , which implements the standard method.You are not allowed to use class String for manipulating the numbers and you also not allowed to use loops or arrays.
here is an example of what it should print:
Enter a five digits integer number: 89376
The digits in 89376 are:8,9,3,7,6
The largest number with this digits is : 98763 .
thanks in advance .
To solve this problem, you can use the following steps:
1. Read the five-digit integer number from the keyboard.
2. Extract each digit from the entered number.
3. Determine the largest digit among the five digits.
4. Construct the largest possible integer number by concatenating the largest digit.
5. Print the largest possible integer number.
Here's an example of how you can write this program in Java:
```java
import java.util.Scanner;
public class LargestNumber {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
// Step 1: Read the five-digit integer number
System.out.print("Enter a five-digit integer number: ");
int number = scanner.nextInt();
// Step 2: Extract each digit from the entered number
int digit1 = number / 10000;
int digit2 = (number / 1000) % 10;
int digit3 = (number / 100) % 10;
int digit4 = (number / 10) % 10;
int digit5 = number % 10;
// Step 3: Determine the largest digit
int largestDigit = Math.max(Math.max(Math.max(Math.max(digit1, digit2), digit3), digit4), digit5);
// Step 4: Construct the largest possible integer number
int largestNumber = largestDigit * 10000 + largestDigit * 1000 + largestDigit * 100 + largestDigit * 10 + largestDigit;
// Step 5: Print the largest possible integer number
System.out.println("Largest possible integer number: " + largestNumber);
}
}
```
In this program, we first prompt the user to enter a five-digit integer number using the `Scanner` class. Then, we extract each digit from the entered number using integer division and modulus operations. We determine the largest digit using the `Math.max()` method to compare all the digits. Finally, we construct the largest possible integer number by concatenating the largest digit and print it to the console.