0317 Compound Interest Calculation 3.0

1 ImportJava.util.Scanner;2 3  Public classText {4      Public Static voidMain (string[] args) {5         6 7          Do {8Scanner Scanner =NewScanner (system.in);9System.out.println ("");TenSystem.out.print ("Please select (0 for exit, 1 for the principal and interest, 2 for the principal, 3 for the investment, 4 for the value of the asset after n years):"); One             intNumber1 =scanner.nextint (); A  -             if(Number1 = = 1) { -System.out.print ("Please enter the principal:"); the                 DoubleMoney =scanner.nextdouble (); -System.out.print ("Please enter annual interest rate:"); -                 DoubleRate =scanner.nextdouble (); -System.out.print ("Please enter the Age:"); +                 intYear =scanner.nextint (); -                  +System.out.print ("Please select (1 for compounding, 2 for simple interest):"); A                 intNumber2 =scanner.nextint (); at                  -                 if(Number2 = = 1) { -                      for(inti = 1; I <= year; i++) { -Money = (1 + rate) *Money ; -                     } -System.out.println ("deposit" + year + "years after the compound interest is calculated as follows:" + (Double) (Math.Round (money*100)/100.0)); in                      -                 } to                 if(Number2 = = 2) { +Money = money + Money * Rate *Year ; -System.out.println ("deposit" + year + "years after the simple interest calculation of principal and interest is:" + (Double) (Math.Round (money*100)/100.0)); the                 } *                  $                 Panax Notoginseng  -             } the  +             if(Number1 = = 2) { ASystem.out.print ("Please enter the principal and interest:"); the                 DoubleMoney =scanner.nextdouble (); +System.out.print ("Please enter annual interest rate:"); -                 DoubleRate =scanner.nextdouble (); $System.out.print ("Please enter the Age:"); $                 intYear =scanner.nextint (); -                  -System.out.print ("Please select (1 for compounding, 2 for simple interest):"); the                 intNumber2 =scanner.nextint (); -                 Wuyi                 if(Number2 = = 1) { the                     Doublenum = 1; -                      for(inti = 1; I <= year; i++) { Wunum = num * (1 +Rate ); -                     } AboutMoney = Money * (1/num); $System.out.println ("Compound interest is required to deposit the principal:" + (Double) (Math.Round (money*100)/100.0)); -                 } -                 if(Number2 = = 2) { -Money = Money * (1/(1 + rate *Year )); ASYSTEM.OUT.PRINTLN ("Simple interest calculation requires deposit of the principal:" + (Double) (Math.Round (money*100)/100.0)); +                 } the  -             } $             if(Number1 = = 3) { the  theSystem.out.print ("Please Enter investment amount:"); the                 DoubleMoney1 =scanner.nextdouble (); theSystem.out.print ("Please enter the amount of harvest:"); -                 DoubleMoney2 =scanner.nextdouble (); in  theSystem.out.print ("Please select (1 to calculate time, 2 to calculate interest rate):"); the                 intNumber2 =scanner.nextint (); About                  the                 if(Number2 = = 1) { theSystem.out.print ("Please enter annual interest rate:"); the                     DoubleRate =scanner.nextdouble (); +                     DoubleYear ; -Year = Logarithm.log (money2/money1,1+Rate ); theYear =Math.ceil (year);BayiSystem.out.println ("Number of years to be deposited:" +Year ); the}Else if(Number2 = = 2) { theSystem.out.print ("Please enter the Age:"); -                     intYear =scanner.nextint (); -                     DoubleRate ; theRate = Math.pow (money2/money1, 1.0/year)-1; theSystem.out.println ("The required annual interest rate is:" + (Double) (Math.Round (rate*10000)/10000.0)); the                 } the             } -              the             if(Number1 = = 4){ theSystem.out.print ("Please enter the annual investment amount:"); the                 DoubleMoney1 =scanner.nextdouble ();94System.out.print ("Please enter annual interest rate:"); the                 DoubleRate =scanner.nextdouble (); theSystem.out.print ("Please enter the Age:"); the                 intYear = Scanner.nextint ();DoubleMoney2=0;98                  for(inti=1;i<=year;i++){ About                      -money1=money1+Money2;101Money2=money1* (1 +Rate );102                     103                 }104The total assets of SYSTEM.OUT.PRINTLN (year+ "year") are: "+ (Double) (Math.Round (money2*100)/100.0)); the             }106 107             if(Number1 = = 0) {108SYSTEM.OUT.PRINTLN ("Thank you for using!" " );109System.exit (0); the                 111             } the} while(true);113     } the}

1  Public class logarithm {2     Static  Public Double log (double double base) {3         return Math.log (value)/Math.log (base); 4          5      }67 }

0317 Compound Interest Calculation 3.0