String.format Or You can also use numeric positions, for example to switch the parameters around:
You’ve already define your variable answer2 in line 2, and in your while loop you are trying to redefine the variable answer2, i.e: You can do it like :
Right click on your Project in the project explorer Click on properties Click on Run Make sure your Main Class is the one you want to be the entry point. (Make sure to use the fully qualified name i.e. mypackage.MyClass) Click OK. Run Project 🙂 If you just want to run the file, right click …
You can press Shift+Ctrl+O for auto importing.
Just cast your double to a float. Also notice that the primitive types can NOT store an infinite set of numbers:
You haven’t provided Spring Boot with enough information to auto-configure a DataSource. To do so, you’ll need to add some properties to application.properties with the spring.datasource prefix. Take a look at DataSourceProperties to see all of the properties that you can set. You’ll need to provide the appropriate url and driver class name:
Can anyone guide me on how I can use a simple timeout in java? Basically in my project I’m executing a statement br.readLine(), which is reading a response from a modem. But sometimes the modem isn’t responding. For that purpose I want to add a timeout. I’m looking for a code like:
Because you are choosing jre dir. and not JDK dir. JDK dir. is for instance (depending on update and whether it’s 64 bit or 32 bit): C:\Program Files (x86)\Java\jdk1.7.0_45 In my case it’s 32 bit JDK 1.7 update 45