![]() ![]() * Java Program to convert a float value to integer. In java, string to int conversion can be achieved using two build-in methods i.e., Integer.ParseInt() and Integer.ValueOf(). If you are new and don't know how to read user input then check out this tutorial. You can further enhance this program to accept a floating-point number from the user and then convert it to an integer. This converts some floating-point numbers to int. In the following example, I have combined both casting and rounding to convert float to an integer in Java. Let's see a complete, running Java program to test whatever you have learned so far. Here is a summary of all three ways to convert a float to an int value in Java: ![]() casting required because Math.round(double) returns long int a = ( int) Math. Since floating point number is by default double, you make sure to put suffix "f" with values, otherwise, you will end up calling Math.round(double) method, which require further casting from long to int as shown below: The (int) operator will truncate the decimal part of the float value and. Remember, Math.round() is overloaded to accept both float and double, the version which accepts float return int and other one return long. To convert a float to an int in Java, you can use the (int) type cast operator. The method Integer.parseInt(String value) will convert a String value. Int a = Math.round( 3.14f) // 3 int b = Math.round( 3.99f) // 4 int c = Math.round( 3.5f) // 4 Convert String to operator (+/-) in java Ask Question Asked 8 years, 7 months ago Modified 2 months ago Viewed 68k times 6 I am using Stack class to calculate simple arithmetic expressions involving integers, such as 1+23.your program would execute operations in the order given,without regarding to the precedence of operators. String values can also be converted to numerical values for use in mathematical equations. Math.round() converts a floating-point number to the nearest integer by first adding 0.5 and then truncating value after the decimal point. This is the right way to convert float to int if you are interested in rounding before conversion. Converting String to Int in Java int value Integer.parseInt(25) // throws NumberFormatException - contains. You can see that for both 3.14 and 3.99 you got just 3 because type casting doesn't do any rounding before truncating value after the decimal point. It's simple, efficient and elegant, Here is an example of casting float to int in Java: If your requirement is to convert a floating point number to an integer by just getting rid of those fractional values after the decimal point then down-casting is the best way to do it. Let's see an example of converting a float value to int in Java. ![]() By the way, Math.random() is overloaded for both float and double, so you can use this for converting double to long as well. ![]()
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