NumberFormat setParseIntegerOnly() method in Java with Examples

The setParseIntegerOnly() method is a built-in method of the java.text.NumberFormat which sets whether or not numbers should be parsed as integers only.

Syntax:

public void setParseIntegerOnly(boolean val)

Parameters: The function accepts a mandatory parameter val which specifies the value to be set

Return Value: The function returns nothing, hence has a return type void.

Below is the implementation of the above function:

Program 1:

// Java program to implement
// the above function

import java.text.NumberFormat;
import java.util.Locale;
import java.util.Currency;

public class Main {
    public static void main(String[] args)
        throws Exception
    {

        NumberFormat nF
            = NumberFormat.getNumberInstance();

        System.out.println("set initially as: "
                           + nF.isParseIntegerOnly());

        // Set grouping
        nF.setParseIntegerOnly(false);

        // Print the final
        System.out.println("set finally as: "
                           + nF.isParseIntegerOnly());
    }
}

Output:

set initially as: false
set finally as: false

Program 2:

// Java program to implement
// the above function

import java.text.NumberFormat;
import java.util.Locale;
import java.util.Currency;

public class Main {
    public static void main(String[] args)
        throws Exception
    {

        NumberFormat nF
            = NumberFormat.getNumberInstance();

        System.out.println("set initially as: "
                           + nF.isParseIntegerOnly());

        // Set grouping
        nF.setParseIntegerOnly(true);

        // Print the final
        System.out.println("set finally as: "
                           + nF.isParseIntegerOnly());
    }
}

Output:

set initially as: false
set finally as: true

Reference: https://docs.oracle.com/javase/10/docs/api/java/text/NumberFormat.html#setParseIntegerOnly(boolean)