When we use the Double.intValue() method to convert a double to an int, the decimal part of the double value is truncated, i.e., it is simply removed. We can use this method to convert a double value to an int value. The Double class in Java provides a method called intValue() that returns the int value of a Double object. Approach 3: Using Double.intValue() Method The rounded value is then explicitly cast to an integer variable "value1" using an explicit cast. Next, the program uses the Math.round() method to round the double value of "data1" to the nearest integer value. The "main" method begins by creating a double variable named "data1" and assigning it the value of 52.6345. ("Integer : " + value1) Įxplanation: In the above example, we declare a class named "PrepBytes" with a "main" method. Now, let’s look at an example that convert double to int in Java using Math.round() method. Int intValue = (int) Math.round(doubleValue) Syntax of Math.round() Method double doubleValue = 52.6345 Typecasting can then be used to transform the long value to an int. When we use the Math.round() method to convert a double to int in Java, the decimal part of the double value is rounded to the nearest long value by adding 0.5 and trimming the decimal points. After that, we print the value of "value" to the console. Next, our Java program converts the double variable "data" to an integer variable "value". The "main" method starts by creating a double variable "data" and assigning it the value 52.6345. ("Integer - " + value) Įxplanation: In the above Java example, we declare a class named "PrepBytes" with a "main" method. Now, let’s look at an example that converts double to int in Java using TypeCasting. Syntax of TypeCasting in Java double data = 52.6345 When converting a double to an int using type casting, the decimal part of the double value is truncated, i.e., it is simply removed. It involves explicitly converting a data type to another data type using the syntax (datatype) variable. Type Casting in Java is the simplest way to convert double to int in Java. Now, let’s discuss in detail all the approaches to convert double to int in Java: Approach 1: Using TypeCasting in Java So, without any further delay, let’s move to our section which is different approaches to convert double to int in Java.Īpproaches to Convert double to int in Java This article explores various methods to convert double to int in Java. Sometimes, it may be necessary to convert a double to an int, such as when we need to perform arithmetic operations that only work with integers or when we want to store the result in an int variable. In Java, double is a data type that represents floating-point numbers, whereas int is a data type that represents integers.
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