Java-based loan amount calculation function example: java loan amount

Java-based loan amount calculation function example: java loan amount

This example describes the loan amount calculation function implemented by Java. We will share this with you for your reference. The details are as follows:

Problem and code:

/** Copyright (c) 2015, Southwest University, School of information and design * All rights reserved. * file name: Helloworld. java * Author: Gao Shuo * Completion Date: July 15, October 15, 2015 * version No.: v1.0 * Problem description: monthly payment amount and total payment are calculated based on the annual interest rate. * Program input: annual interest rate, time, and amount. * Program output: monthly payment amount and total payment amount. */Package practice_01; import java. util. extends; public class ComputeLoan {public static void main (String [] args) {// TODO Auto-generated method stub System. out. println ("helper house Test Result:"); partition input = new partition (System. in); System. out. println ("please input the yearly rate"); double yearlyrate = input. nextDouble (); double monthlyrate = yearlyrate/1200; System. out. println ("please input the number of years"); int number = input. nextInt (); System. out. println ("please input the amount"); double amount = input. nextDouble (); double monthlypayment = amount * monthlyrate/1-1/Math. pow (1 + monthlyrate, number * 12); double totalpayment = monthlypayment * number * 12; System. out. println ("the monthly payment is" + (int) (monthlypayment * 100)/100.0); System. out. println ("the total payment is" + (int) (totalpayment) * 100 );}}

Running result:

Knowledge Point summary:

Forced conversion (explicit conversion) of data types, Math. pow, priority

Experience:

The java priority is similar to that of others. Java has strict requirements on types and does not automatically convert all types. Small data types can be extended, while large data types can be extended. errors may occur if conversion is not performed.

In addition, an error occurs when values of different variable types are not converted. For example, assign an int value to short or byte.

At the beginning, I didn't feel much trouble. Now it seems a little troublesome .. I still don't quite understand what object-oriented means. Zookeeper ~~

Finally, record a knowledge point: Some output statements in java contain escape characters, such as 'newline, carriage return, and tab, which cannot be used. For example:

Double quotation marks are \ "single quotation marks are \ '. The backspace is \ B tab is \ t line feed \ n carriage return \ r backslash \\

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