Convert BigDecimal to Integer in Java [3 ways]

In this post, I will be sharing how to convert BigDecimal to Integer in Java. There are three ways to achieve our goal:
1. Using intValueExact() [Recommended]
2. Using intValue()
3. Using toBigInteger()

Read Also: Convert Integer to BigDecimal in Java

Let's dive deep into the topic:

Convert BigDecimal to Integer in Java

1. Using intValueExact() method

You can easily use BigDecimal class intValueExact() method to convert BigDecimal to Integer in Java.

 BigDecimal.intValueExact()

Note: BigDecimal class intValueExact() method will throw ArithmeticException if BigDecimal has a nonzero fractional part or is out of the possible range for an int result.

Below is the step-by-step example to convert BigDecimal to Integer in Java using the intValueExact() method.

 import java.math.BigDecimal;
public class BigDecimalToInteger {
    public static void main(String args[]) {
      // Creating BigDecimal Object using Constructor    
      BigDecimal bd = new BigDecimal("34563245");
      // Converting BigDecimal to Integer using intValueExact() 
      Integer i = bd.intValueExact();
      // Displaying Integer 
      System.out.println("Converted BigDecimal to Integer: "+i);
    }
}

Output:
Converted BigDecimal to Integer: 34563245

2. Using intValue() method

You can also use BigDecimal class intValue() method to convert BigDecimal to Integer in Java.

 BigDecimal.intValue()

Note: Unlike the intValueExact() method, BigDecimal class intValue() method will not throw ArithmeticException even if BigDecimal has a nonzero fractional part or is out of the possible range for an int result.

Below is the step-by-step example to convert BigDecimal to Integer in Java using the intValue() method.

 import java.math.BigDecimal;
public class BigDecimalToInteger2 {
    public static void main(String args[]) {
      // Creating BigDecimal Object using Constructor    
      BigDecimal bd = new BigDecimal("439745743");
      // Converting BigDecimal to Integer using intValue() 
      Integer num = bd.intValue();
      // Printing Integer 
      System.out.println("Converted BigDecimal to Integer: "+ num);
    }
}

Output:
Converted BigDecimal to Integer: 439745743

3. Using toBigInteger() method

You can also use BigDecimal class toBigInteger() method to convert BigDecimal to Integer in Java.

Below is the step-by-step example to convert BigDecimal to Integer in Java using the toBigInteger() method.

 import java.math.BigDecimal;
public class BigDecimalToInteger3 {
    public static void main(String args[]) {
      // Creating BigDecimal Object    
      BigDecimal bd = new BigDecimal("897347893");
      // Converting BigDecimal to Integer using toBigInteger() method 
      Integer num = bd.toBigInteger().intValueExact();
      // Printing Integer value 
      System.out.println("Converted BigDecimal to Integer: "+ num);
    }
}

Output:
Converted BigDecimal to Integer: 897347893

That's all for today, please mention in the comments in case you have any questions related to converting BigDecimal to Integer in Java.

Java Hungry

Convert BigDecimal to Integer in Java [3 ways]