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59
OSVUploadr/src/main/java/ca/osmcanada/osvuploadr/Utils/Rational.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| /* | ||
| * To change this license header, choose License Headers in Project Properties. | ||
| * To change this template file, choose Tools | Templates | ||
| * and open the template in the editor. | ||
| */ | ||
| package ca.osmcanada.osvuploadr.Utils; | ||
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| import java.math.BigDecimal; | ||
| import java.math.BigInteger; | ||
| import java.math.MathContext; | ||
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| /** | ||
| * | ||
| * @author james | ||
| */ | ||
| public class Rational { | ||
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| private int num, denom; | ||
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| static int[] reduceFraction(BigInteger num, BigInteger den) { | ||
| int gcd = num.gcd(den).intValue(); | ||
| int[] rf = { num.divide(BigInteger.valueOf(gcd)).intValue(), den.divide(BigInteger.valueOf(gcd)).intValue() }; | ||
| return rf; | ||
| } | ||
| public Rational(double d) { | ||
| String[] parts = String.valueOf(d).split("\\."); | ||
| BigDecimal den=null; | ||
| if(parts[1].length()>6){ | ||
| den=BigDecimal.TEN.pow(6); | ||
| parts[1]=parts[1].substring(0, 6); | ||
| } | ||
| else{ | ||
| den=BigDecimal.TEN.pow(parts[1].length()); | ||
| } | ||
| BigDecimal num = (new BigDecimal(parts[0]).multiply(den)).add(new BigDecimal(parts[1])); // numerator | ||
| int[] fraction = reduceFraction(num.toBigInteger(), den.toBigInteger()); | ||
| this.num = fraction[0]; this.denom = fraction[1]; | ||
| } | ||
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| public Rational(int num, int denom) { | ||
| this.num = num; this.denom = denom; | ||
| } | ||
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| Rational() { | ||
| throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. | ||
| } | ||
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| public int getNumerator(){ | ||
| return num; | ||
| } | ||
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| public int getDenominator(){ | ||
| return denom; | ||
| } | ||
| public String toString() { | ||
| return String.valueOf(num) + "/" + String.valueOf(denom); | ||
| } | ||
| } | ||
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