Java Program to Condense a Number
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Condense a Number
In the following example, we will condense a number (8654) into a single digit (5).
i.e., 8654 = 8 + 6 + 5 + 4
8654 = 23
8654 = 2 + 3
8654 = 5 (single digit)
Example
Java Compiler
public class myClass
{
static int myMethod(int a)
{
int copyNum = a;
int remainder = 0;
int result = 0;
while(copyNum != 0)
{
remainder = copyNum % 10;
result += remainder;
copyNum = copyNum / 10;
}
return result;
}
public static void main(String[] args)
{
int num = 8654;
int userValue = num;
while(num > 9)
num = myMethod(num);
System.out.format("Single Digit of %d: %d\n", userValue, num);
}
}
Output
Single Digit of 8654: 5
Condense any Given Number
In the following example, we will condense any given number into a single digit.
Example
Java Compiler
import java.util.Scanner;
public class myClass
{
static int myMethod(int a)
{
int copyNum = a;
int remainder = 0;
int result = 0;
while(copyNum != 0)
{
remainder = copyNum % 10;
result += remainder;
copyNum = copyNum / 10;
}
return result;
}
public static void main(String[] args)
{
Scanner reader = new Scanner(System.in);
System.out.print("Enter any Multi digit (int) number: ");
int num = reader.nextInt();
int userValue = num;
while(num > 9)
num = myMethod(num);
System.out.format("Single Digit of %d: %d\n", userValue, num);
}
}
Output
Enter any Multi digit (int) number: 478
Single Digit of 478: 1
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