Problem is that your folder is not identified as a Source folder. Right click on the project folder -> Properties Choose ‘Java Build Path’ Click on ‘Sources’ tab on top Click on ‘Add Folder’ on the right panel Select your folders and apply
Since the main method is static and the fxn() method is not, you can’t call the method without first creating a Two object. So either you change the method to: or change the code in main to:
First of all, remember to indent your code for readability. Concept 1. Concept 2. // compare Strings using compareTo method (which returns 0 if equal Rest of your code and concepts are correct 🙂
Ok so I have to read in a postfix expression from a file. The postfix expression must have spaces to separate each operator or operand. What I have so far works only if there is no spaces between the operators or operands in the input file. (i.e. if the file has 12+ the result I … Read more
At the simplest level, a key-value pair is just two values, one of which you have designated to be a “key” and the other you have designated to be the “value”. However, it is more common to talk about key-value pairs in the context of a mapping, i.e. a (mathematical) function which maps from a … Read more
Use the std::vector class from the standard library.
id is of primitive type int and not an Object. You cannot call methods on a primitive as you are doing here : Try replacing this: with
I was trying to make a Minecraft server and got the following error on startup: Error occured during initialization of VM Could not reserve enough space for object heap Error: Could not create the Java Virtual Machine Error: A fatal exception has occurred. Program will exit. I tried everything I could find: I created CLASS … Read more
First of all, I have a box with 8gb of ram, so I doubt total memory is the issue. This application is running fine on machines with 6gb or less. I am trying to reserve 3GB of space using -Xmx3G under “VM Arguments” in Run Configurations in Eclipse. Every time I try to reserve more … Read more