![]() ![]() Here’s an example: String numStr = "3.14" To handle this exception, you can use a try-catch block like this: String numStr = "not a number" Īnother way to convert a String to a Double is to use the Double constructor that takes a String argument. Note that the parseDouble() method may throw a NumberFormatException if the String cannot be parsed as a valid Double. In this example, we create a String numStr that contains the value “3.14”, and then use the parseDouble() method to convert it to a Double value. Here’s an example: String numStr = "3.14" ĭouble numDouble = Double.parseDouble(numStr) The parseDouble() method is a static method of the Double class that takes a String argument and returns the equivalent Double value. There are two main ways to convert a String to a Double in Java: using the parseDouble() method and using a Double constructor. On the other hand, a Double is a primitive data type in Java that represents a real number with double-precision floating-point format.Ĭonverting a String to a Double can be useful in many situations, such as when you need to perform mathematical operations or when you need to parse numeric input from a user. Frequently asked questions Converting a Java String to a DoubleĪ Java String is a sequence of characters that represents a text value.Handling exceptions with try-catch blocks.Converting a String to a Double using parseDouble().User Registration, Log in, Log out – Video Tutorials. ![]()
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