![]() parseLong() as it returns a long primitive, not a wrapper. This method is best, so you should do the following: Use Long. An int variable stores an integer (or whole number or fixed-point number). The correct way to convert a String to long in Java is to use the parseLong(String x) method of the Long wrapper class. ![]() Hope that you will have understood and practiced all programs based on the conversion of int to long in Java. The following diagram illustrates three types of variables: int, double and String. In this tutorial, you learned how to convert a primitive type long value to int and vice versa in Java easily. The intValue() method returns the value of this Long as an int after a narrowing primitive conversion. In this example program, we have used intValue() method of Long class for converting Long object to int value. Program code 4: // Java Program to demonstrate the conversion of Long object into int value using intValue() method. Let’s take a simple program for converting Long object to int in Java. Program code 3: // Java Program to demonstrate the conversion of long into int value.įor converting Long object to int value in Java, we use intValue() method of Long class. Let’s make a Java program for converting long primitive type into int value using typecasting. To convert the higher data type to lower, we perform typecasting in the program through a typecast operator ( datatype). To convert long to int numeric value in Java, we use typecasting. Convert Long to Int in Java using typecasting In this article, youll learn how to convert a string to an integer in Java using two methods of the Integer class parseInt () and valueOf (). In the above program, the valueOf() method of Long wrapper class returns a Long instance representing the specified long value. ![]() Long l2 = Long.valueOf(num) // second way Program code 2: // Java Program to demonstrate the conversion of int into long object. Let’s make a simple Java program for converting int to Long object using valueOf() method of Long class. We can convert int numeric value to Long object by creating an object of Long wrapper class and then call its valueOf() method. ![]() Long numeric value after conversion: 9999Ĭonverting Int to Long object in Java using Long.valueOf() method ("Long numeric value after conversion: " +l) Program code 1: // Java Program to demonstrate the conversion of int into long implicitly. Similar to parseLong(String) method, this method also allows minus - as a first character in the String. Let’s create a simple Java program to convert int to long easily. valueOf(String): Converts the String to a long value. We also known this conversion as implicit type casting or type promotion. This is because the lower type can be converted to higher type implicitly. We do not need to do extra to convert int to long. ![]()
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