Random and Roundup : Float « Date Type « Android

1. Android
2. Date Type
3. Float

Random and Roundup

    

//package com.akjava.lib.android.math;

import java.math.BigDecimal;

public final class MathUtils {
  /*
   * these code come from jme
   */
  public static final float PI = (float) Math.PI;
  public static final float DEG_TO_RAD = PI / 180.0f;
  public static final float RAD_TO_DEG = 180.0f / PI;

  public static float radToDeg(final float rad) {
    return RAD_TO_DEG * rad;
  }

  public static float degToRad(final float deg) {
    return DEG_TO_RAD * deg;
  }

  public static float random(final float min, final float max) {
    return (float) Math.random() * (max - min) + min;
  }

  public static int randomInt(final int min, final int max) {
    return (int) (Math.random() * (max - min) + min);
  }

  public static float toRoundHalfUp(float value, int index) {
    BigDecimal ret = new BigDecimal(value);
    try {

      return ret.setScale(index, BigDecimal.ROUND_HALF_UP).floatValue();
    } catch (Exception e) {

      e.printStackTrace();
    }
    return 0;// ret direct

  }
}

   
    
    
    
  

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