I need to run BlueJ for a CS class I'm in, otherwise I would try other IDEs. Is there a chance it's spawning off screen? On my CB 14 I had an issue were the program would spawn almost completely off screen and I would have to drag it into view. It downloads fine, but when I go to open it, I get the little center screen box with the logo like the program is opening, then it disappears and nothing happens. I am downloading it via the steps on their website through terminal.
I decided shortly after to upgrade to the HP X2 and now I am having trouble opening blueJ. It took some work but I got it to work in the end.
deb (4.1.4) file off the website and ran it and we’re good.įirst I bought the newer HP Chromebook 14 AMD version and setup linux and downloaded BlueJ (version 4.1.4). Couldn’t get flatpak to run it either so I just downloaded the. These errors are reported by the compiler and they prevent the program from executing.Turns out you cannot be on Dev channel.
Syntax Errors are the errors that occur when we violate the rules of writing the statements of the programming language. Question 9Įxplain the following terms, giving an example of each. Errors are classified into three categories - Syntax Errors, Runtime Errors and Logical Errors. Question 8Įrrors are mistakes in a program that prevents it from its normal working. What are delimiters? Which is the default delimiter used in the Scanner class?Ī delimiter is a sequence of one or more characters that separates two tokens. Returns true if there is another line in the input of the Scanner object. Returns true if the Scanner object has another token in its input. It checks if the Scanner has another token in its input. It reads the input till the next complete token until the delimiter is encountered. It returns the read data as a char value. It returns the read data as a String value. It reads the complete token and then the first character is returned using the charAt(0) method. It places the cursor in the next line after reading the input. It places the cursor in the same line after reading the input.
It reads the input till the end of line so it can read a full sentence including spaces. It reads the input only till the next complete token until the delimiter is encountered. The different next methods provided by Scanner class are next(), nextShort(), nextInt(), nextLong(), nextFloat(), nextDouble(), nextLine(), next().charAt(0). Scanner class provides various next methods to read these tokens from the stream. The input received by Scanner class is broken into tokens using a delimiter pattern. We connect our Scanner class to this stream while creating its object. The data entered by the user through the keyboard is provided to our Java program with the help of standard input stream that is specified as System.in in the program. * Single line comment using multi line comment style */ Question 5Įxplain data input technique in a program using the Scanner class. For example, we can import all the classes present in the java.util package into our program using the below statement: Import statement is used to import built-in and user-defined packages and classes into our Java program. Question 2Įxplain the use of import statement with an example.
Which package would you import for the Scanner class?Įrrors occur in a program when. Which package would you import to display the date and time? Which keyword do you use to include a class in your program?ĭefault delimiter used in the Scanner class is. Chapter 7 Input in Java Class 9 - Logix Kips ICSE Computer Applications with BlueJ