Java Big Decimal

A little summary about Big Decimal

BigDecimal is one of Java's APIs Since ordinary numeric types are processed in binary, unintended numbers may be returned. However, by using BigDecimal, it can be treated as a decimal number.

`Number.java`


import java.math.BigDecimal;
import java.math.RoundingMode;

public class Number {
  public static void main(String[] args) {
    BigDecimal number1 = new BigDecimal("0.2");     //The argument is""Surround with
    BigDecimal number2 = new BigDecimal("4");
    System.out.println(number1);
          
    System.out.println(BigDecimal.ZERO);    //0
    System.out.println(BigDecimal.ONE);     //1
    System.out.println(BigDecimal.TEN);     //10

    System.out.println(number1.add(number2));         
    //Addition number1+ number2
    System.out.println(number1.subtract(number2));　　
    //Subtraction number1- number2
    System.out.println(number1.multiply(number2));　　
    //Multiply number1* number2
    System.out.println(number1.divide(number2, 3, RoundingMode.UP));  
    //Division number1/ number2,Display up to 3 decimal places,Round up
    //RoundingMode.Is rounded up, rounded down, rounded off, etc.

    BigDecimal number3 = new BigDecimal("0.22");
    BigDecimal value1 = number3.scaleByPowerOfTen(2);  //10 squared
    System.out.println(value1);　　//22

    BigDecimal value2 = number3.scaleByPowerOfTen(-2);  //10-Square
    System.out.println(value2);　　//0.0022

    BigDecimal value3 = number3.negate();  //Negative
    System.out.println(value3);　　　//-0.22
     

  }
}

that's all. There are still many functions, so I would like to try it.