Hi I’m new to java and trying to make a Quiz to practice. I wanna make a Question where the user has to combine words from to categories to pairs. Like A1 B4 C3 D2. What I did now is using an if else statement to check if the input is the correct answer, but it only works with 1A.
Tag: java.util.scanner
Better way to replace unnecessary scan.nextLine(); to find StdIn String?
I’ve been working through the HackerRank problems and trying to always research a solution before asking in any communities for help. While I managed to get the current one to work, I feel there is some unnecessary code involved and that someone can teach me how to do it better, as I’d hate to pic…
Simple calculator program in Java
I am a newbie coder in Java and I am trying to make this calculator in java where a user can enter two numbers and select the operation to be done on those numbers. However when the code comes to selecting the operator it skips the user input and the if statement and directly implements the else statement. An…
How to stop Java Scanner from accepting input
So, I am working on a quiz taking program that works from the command line and the quizzes have time limits. What I want to do, is to stop the quiz right when the user’s time is up even if they’re in the middle of answering a question. I am using Java’s Scanner to get the user’s input,…
how to print out the user number input with the result instead of showing only result?
I am trying to print out the numbers that user input but i got no idea (example: when user input 2 and 3, it should be show 2+3=5 instead of 5 alone ) also how to find the average of the number too. here is my code: } as you can see at (star)(star)…..(star)(star) it shouldn’t be /2 because it
Scanning multiple lines using single scanner object
I a newbie to java so please don’t rate down if this sounds absolute dumb to you ok how do I enter this using a single scanner object 5 hello how do you do welcome to my world 6 7 for those of you who suggest check it out, it does not work!!! thanks Answer Sample execution:
Different Java Scanner for input of different types
Imagine the following scanario: I have a program which ask for an integer input, followed by a String input. With the aobe codes, I was not given a chance to enter the name. So normally I will declare 2 scanner objects as follows: My question is: Is it necessary to declare multiple scanner objects to accept i…
What’s the difference between next() and nextLine() methods from Scanner class?
What is the main difference between next() and nextLine()? My main goal is to read the all text using a Scanner which may be “connected” to any source (file for example). Which one should I choose and why? Answer I always prefer to read input using nextLine() and then parse the string. Using next(…
Java using scanner enter key pressed
I am programming using Java. I am trying write code which can recognize if the user presses the enter key in a console based program. How can I do this using java. I have been told that this can be done using either Scanner or, buffered input reader. I do not understand(or know how to use) buffered input read…
what are the benefits of BufferedReader over Scanner
here’s a code about depth first search in graphs. who knows why bufferedReader class were used in this code? and why nextInt function not used instead? what is its privilege? is it for speeding up processing? Thanks 🙂 Answer It’s an issue of how you intend to use the stream. A buffered reader exis…