Extracts a decimal digit from a number : Decimal « Data Type « Java

1. Java
2. Data Type
3. Decimal

Extracts a decimal digit from a number

       

//package com.ryanm.droid.rugl.util;

/**
 * Where should these go?
 * 
 * @author ryanm
 */
public class Util
{
  /**
   * Extracts a decimal digit from a number
   * 
   * @param value
   *           The number to extract from
   * @param place
   *           The index of the digit to extract: 0 for units, 1 for
   *           tens, 2 for hundreds, -1 for tenths, and so on
   * @return The designated digit
   */
  public static int extractDigit( float value, int place )
  {
    float pow = ( float ) Math.pow( 10, place );
    float powp = pow * ( place < 0 ? -10 : 10 );

    value %= powp;

    return ( int ) ( value / pow );
  }
}

   
    
    
    
    
    
    
  

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