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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

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// 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);
    }
}

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Output:

1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234554324324362432767463726478326478326784637264783264736274673864736473246354635463546325645326456325463546536453654632546354653463254653453264564635463263453264654632498739473

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

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// 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);
    }
}

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Output:

45367850000000000

References: https://docs.oracle.com/en/java/javase/12/docs/api/java.base/java/math/BigDecimal.html#toPlainString()

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