MathContext toString() Method in Java

The java.math.MathContext.toString() function is an in-built function in Java which returns the string representation of a MathContext object’s context settings.

The string returned represents the settings of the MathContext object as two space-separated words. These two space-separated strings are as follows :

• The first part of the returned string displays the value of the precision settings preceded by string “precision=”
• The second part of the returned string displays the value of the RoundingMode settings preceded by string “roundingMode=”

Syntax :

public String toString()

Parameter: The method accepts no parameter.

Return Values: This method returns a string representing the context settings of the object of the MathContext class in the format mentioned above.

Examples:

Input : m1 = new MathContext(2, RoundingMode.HALF_DOWN)
Output : precision=2 roundingMode=HALF_DOWN

Input : m1 = new MathContext(60)
Output : precision=60 roundingMode=HALF_UP

Below programs illustrates the use of java.math.MathContext.toString() function :
Program 1:

// Java program to demonstrate toString() method
import java.math.*;
import java.io.*;

class GFG {
    public static void main(String[] args)
    {

        // creating a MathContext object
        MathContext m1;

        // assign context settings to m1
        m1 = new MathContext(37, RoundingMode.HALF_DOWN);

        System.out.println(m1.toString());
    }
}

Output:

precision=37 roundingMode=HALF_DOWN

Program 2:

// Java program to demonstrate toString() method
import java.math.*;
import java.io.*;

class GFG {
    public static void main(String[] args)
    {

        // Creating a MathContext object
        MathContext m1;

        // Assign context settings to m1
        m1 = new MathContext(60);

        System.out.println(m1.toString());
    }
}

Output:

precision=60 roundingMode=HALF_UP

Reference : https://docs.oracle.com/javase/7/docs/api/java/math/MathContext.html#toString()