How to convert Java double to int?

In Java, a double can be converted into an int using the typecast operator. This is because, in order to convert a higher data type into a lower data type, typecasting needs to be performed and this type of conversion is called Typecasting conversion.

In Java, Typecasting is performed through the typecast operator (datatype).

Here, the primitive double value is converted into int using the typecasting operator.

public class StudyTonight
{  
    public static void main(String args[])
    {  
        double d = 500.0;  
        int i = (int)d;  //typecasting 
        System.out.println("The int value is " +i); 
    }
}

Output:

The int value is 500

Also, we can convert a double object to an int by intValue() method of Double class.

Here, the Double object is converted into int by using the intValue() method.

public class StudyTonight
{  
    public static void main(String args[])
    {  
        Double d = new Double(50.78);  
        int i  = d.intValue();  
        System.out.println("The int value is : " +i);   
    }
}

Output:

The int value is : 50

Here, the primitive double value is converted into int type value.

public class StudyTonight
{  
    public static void main(String args[])
    {  
        Double myDouble = Double.valueOf(10.0);
        int val = Integer.valueOf(myDouble.intValue());
        System.out.println("The int value is : " +val);   
    }
}

Output:

The int value is : 10