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  1. import java.io.*;
  2. import java.math.BigDecimal;
  3. import java.util.Scanner;
  4.  
  5. interface IBond
  6. {
  7.     public BigDecimal getPrice();
  8.     public void setPrice( BigDecimal price );
  9.  
  10.     public BigDecimal getPeriod();
  11.     public void setPeriod( BigDecimal period );
  12.  
  13.     public BigDecimal getCouponRate();
  14.     public void setCouponRate( BigDecimal couponRate );
  15.  
  16.     public BigDecimal getCpiRate();
  17.     public void setCpiRate( BigDecimal cpiRate );
  18. }
  19.  
  20. abstract class Bond implements IBond
  21. {
  22.     public Bond( BigDecimal price, BigDecimal period, BigDecimal couponRate, BigDecimal cpiRate )
  23.     {
  24.         this.price = price;
  25.         this.period = period;
  26.         this.couponRate = couponRate;
  27.         this.cpiRate = cpiRate;
  28.     }
  29.  
  30.     protected BigDecimal price;
  31.     public BigDecimal getPrice() { return price; }
  32.     public void setPrice( BigDecimal price ) { this.price = price; }
  33.  
  34.     protected BigDecimal period;
  35.     public BigDecimal getPeriod() { return period; }
  36.     public void setPeriod( BigDecimal period ) { this.period = period; }
  37.  
  38.     protected BigDecimal couponRate;
  39.     public BigDecimal getCouponRate() { return couponRate; }
  40.     public void setCouponRate( BigDecimal couponRate ) { this.couponRate = couponRate; }
  41.  
  42.     protected BigDecimal cpiRate;
  43.     public BigDecimal getCpiRate() { return cpiRate; }
  44.     public void setCpiRate( BigDecimal cpiRate ) { this.cpiRate = cpiRate; }
  45.  
  46. }
  47.  
  48. class ZeroCouponBond extends Bond
  49. {
  50.     public ZeroCouponBond( BigDecimal price, BigDecimal period, BigDecimal couponRate, BigDecimal cpiRate )
  51.     {
  52.         super( price, period, couponRate, cpiRate );
  53.     }
  54. }
  55.  
  56. class RegularBond extends Bond
  57. {
  58.     public RegularBond(  BigDecimal price, BigDecimal period, BigDecimal couponRate, BigDecimal cpiRate )
  59.     {
  60.         super( price, period, couponRate, cpiRate );
  61.     }
  62. }
  63.  
  64. class RealReturnBond extends Bond
  65. {
  66.     public RealReturnBond( BigDecimal price, BigDecimal period, BigDecimal couponRate, BigDecimal cpiRate )
  67.     {
  68.         super( price, period, couponRate, cpiRate );
  69.     }
  70. }
  71.  
  72. abstract class Calculator
  73. {
  74.     public static BigDecimal Calculate( IBond bond )
  75.     {
  76.         return new BigDecimal(0);
  77.     }
  78.  
  79.     protected static BigDecimal CalculateZeroCouponYield( IBond bond )
  80.     {
  81.         return bond.getPrice().divide( bond.getPeriod().multiply( bond.getPrice() ) );
  82.     }
  83.  
  84.     protected static BigDecimal CalculateRegularCouponYield( IBond bond )
  85.     {
  86.         return CalculateZeroCouponYield( bond ).add( bond.getCouponRate() );
  87.     }
  88.  
  89.     protected static BigDecimal CalculateRealReturnBondYield( IBond bond )
  90.     {
  91.         return CalculateRegularCouponYield( bond ).add( bond.getCpiRate() );
  92.     }    
  93. }
  94.  
  95. class ZeroCouponYieldCalculator extends Calculator
  96. {
  97.     public static BigDecimal Calculate( IBond bond )
  98.     {
  99.         return CalculateZeroCouponYield( bond );
  100.     }
  101. }
  102.  
  103. class RegularYieldCalculator extends Calculator
  104. {
  105.     public static BigDecimal Calculate( IBond bond )
  106.     {
  107.         return CalculateRegularCouponYield( bond );
  108.     }
  109. }
  110.  
  111. class RealReturnYieldCalculator extends Calculator
  112. {
  113.     public static BigDecimal Calculate( IBond bond )
  114.     {
  115.         return CalculateRealReturnBondYield( bond );
  116.     }
  117. }
  118.  
  119. class Solution {   
  120. 	public static void main(String args[] ) throws Exception {
  121.         Scanner scanner = new Scanner(System.in);
  122.  
  123.         BigDecimal price = scanner.nextBigDecimal();
  124.         BigDecimal period = scanner.nextBigDecimal();
  125.         BigDecimal couponRate = scanner.nextBigDecimal();
  126.         BigDecimal cpiRate = scanner.nextBigDecimal();
  127.  
  128.         /* Enter your code here. Read input from STDIN. Print output to STDOUT */
  129.         IBond zeroCouponBond = new ZeroCouponBond( price, period, couponRate, cpiRate );
  130.         IBond regularBond = new RegularBond( price, period, couponRate, cpiRate );
  131.         IBond realReturnBond = new RealReturnBond( price, period, couponRate, cpiRate );
  132.         System.out.println( "price: " + price + " period: " + period + " couponrate: " + couponRate + " cpirate: " + cpiRate );
  133.         System.out.println( ZeroCouponYieldCalculator.Calculate( zeroCouponBond ) + " " + RegularYieldCalculator.Calculate( regularBond ) + " " + RealReturnYieldCalculator.Calculate( realReturnBond ) );
  134.         System.out.println(BigDecimal.valueOf(10.1234).setScale(2, BigDecimal.ROUND_HALF_UP));
  135.         }
  136. }
Success #stdin #stdout 0.08s 2184192KB
comments (?)
stdin
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80
10
0.050
0.010
stdout
copy 
price: 80 period: 10 couponrate: 0.050 cpirate: 0.010
0.1 0.150 0.160
10.12
https://ideone.com/ewFx5c
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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