BigDecimal toPlainString() Method in Java with Examples

Last Updated : 03 Jun, 2019

The java.math.BigDecimal.toPlainString() method is used to represent the current BigDecimal by which this method is called into String form without an exponent field. If the values are with a positive scale, the number of digits to the right of the decimal point is used to indicate scale. For values with a zero or negative scale, the resulting string is generated as if the value were converted to a numerically equal value with zero scale and as if all the trailing zeros of the zero scale value were present in the result.
Note: If the result of this method is passed to the string constructor, only the numerical value of this BigDecimal will be recovered, the representation of the new BigDecimal may have a different scale. In particular, this method behaves analogously to the toString method.

Syntax:

public String toPlainString()

Parameter: This method do not accepts any parameter.

Return value: This method returns the String representation of this BigDecimal number without an exponent field.

Below programs illustrates the use of toPlainString() method in java

Example 1: Example to convert BigDecimal into plain String without exponent notation

// Java program to demonstrate 
// toPlainString() method of BigDecimal 
  
import java.math.*; 
  
class GFG { 
    public static void main(String[] args) 
    { 
        // Creating a BigDecimal object 
        BigDecimal b; 
  
        // Object of String to hold the number 
        String input = "012345678901234567"
                       + "8901234567890123"
                       + "4567890123456789"
                       + "0123456789012345"
                       + "6789012345678901"
                       + "2345678901234567"
                       + "8901234567890123"
                       + "4567890123456789"
                       + "0123456789012345"
                       + "6789012345678901"
                       + "2345678901234567"
                       + "8901234567890123"
                       + "4567890123456789"
                       + "0123456789012345"
                       + "6789012345678901"
                       + "2345678901234567"
                       + "8901234567890123"
                       + "4554324324362432"
                       + "7674637264783264"
                       + "7832678463726478"
                       + "3264736274673864"
                       + "7364732463546354"
                       + "6354632564532645"
                       + "6325463546536453"
                       + "6546325463546534"
                       + "6325465345326456"
                       + "4635463263453264"
                       + "654632498739473"; 
  
        // Converting to BigDecimal 
        b = new BigDecimal(input); 
  
        // Apply toPlainString() method 
        String s = b.toPlainString(); 
  
        // Print the result 
        System.out.println(s); 
    } 
} 

Output:

1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234554324324362432767463726478326478326784637264783264736274673864736473246354635463546325645326456325463546536453654632546354653463254653453264564635463263453264654632498739473

Example 2: Example to convert BigDecimal into plain String with exponent notation

// Java program to demonstrate 
// toPlainString() method of BigDecimal 
  
import java.math.*; 
  
class GFG { 
    public static void main(String[] args) 
    { 
  
        // Create a BigDecimal object 
        BigDecimal a; 
  
        // Create a String object 
        String s; 
  
        a = new BigDecimal("4536785E10"); 
  
        // apply toPlainString() method 
        s = a.toPlainString(); 
  
        // print the result 
        System.out.println(s); 
    } 
} 