Overview
In this tutorial, we show you how to convert
BigDecimal to
int in Java. The snippet code below will show you how to convert
java.math.BigDecimal to the primitive data type (
int).
Using java.math.BigDecimal.intValue() method
In the following code shows how to use
java.math.BigDecimal.intValue() method.
package com.jackrutorial;
import java.math.BigDecimal;
public class BigDecimalToIntExample1 {
public static void main(String[] args) {
BigDecimal bdNumber = new BigDecimal("2.8");
System.out.println("The BigDecimal is : " + bdNumber);
// Returns the value of this BigDecimal as an int.
int intNumber = bdNumber.intValue();
System.out.println("intNumber: " + intNumber);
}
}
Output
The BigDecimal is : 2.8
intNumber: 2
Using java.math.BigDecimal().setScale(0, RoundingMode.DOWN).intValueExact() method
In the following code shows how to use
java.math.BigDecimal.setScale(0, RoundingMode.DOWN).intValueExact() method.
package com.jackrutorial;
import java.math.BigDecimal;
import java.math.RoundingMode;
public class BigDecimalToIntExample2 {
public static void main(String[] args) {
BigDecimal bdNumber = new BigDecimal("2.8");
System.out.println("The BigDecimal is : " + bdNumber);
// Java 7 or below
int intNumber = bdNumber.setScale(0, RoundingMode.DOWN).intValueExact();
System.out.println("intNumber: " + intNumber);
}
}
Output
The BigDecimal is : 2.8
intNumber: 2
Using java.math.BigDecimal..toBigInteger().intValueExact()
In the following code shows how to use
java.math.BigDecimal.toBigInteger().intValueExact() method for Java 8.
package com.jackrutorial;
import java.math.BigDecimal;
public class BigDecimalToIntExample3 {
public static void main(String[] args) {
BigDecimal bdNumber = new BigDecimal("2.8");
System.out.println("The BigDecimal is : " + bdNumber);
// java 8
// Converts this BigDecimal to an int, checking for lost information.
int intNumber = bdNumber.toBigInteger().intValueExact();
System.out.println("intNumber: " + intNumber);
}
}
Output
The BigDecimal is : 2.8
intNumber: 2
