Computer Applications
Write a program to enter a two digit number and find out its first factor excluding 1 (one). The program then find the second factor (when the number is divided by the first factor) and finally displays both the factors.
Hint: Use a non-return type method as void fact(int n) to accept the number.
Sample Input: 21
The first factor of 21 is 3
Sample Output: 3, 7
Sample Input: 30
The first factor of 30 is 2
Sample Output: 2, 15
Java
User Defined Methods
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Answer
import java.util.Scanner;
public class KboatFactors
{
public void fact(int n) {
if (n < 10 || n > 99) {
System.out.println("ERROR!!! Not a 2-digit number");
return;
}
int i;
for (i = 2; i <= n; i++) {
if (n % i == 0)
break;
}
int sf = n / i;
System.out.println(i + ", " + sf);
}
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.print("Enter number: ");
int num = in.nextInt();
KboatFactors obj = new KboatFactors();
obj.fact(num);
}
}
Variable Description Table
Program Explanation
Output
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