I have a question about Java input and output.

Asked 2 years ago, Updated 2 years ago, 24 views

In C language, the input and output are printf(); and scanf(); In C++ language, it is cout <<;; and cin >>.

Java has System.out.println(); System.out.print(); and so on I wonder if there is a command to enter. When you're reading books and doing things like typing, At startup, add the args[] array to the

int variable = args[0]; I did it like this

Is there a command that you can input directly from the console like scanf?

java

2022-09-22 16:22

1 Answers

You can use System.in. Refer to the following code for more information. If you want to learn more, I recommend you to listen to the next lecture.

http://tryhelloworld.co.kr/courses/ Java-introduction/lessons/char-unit-input/output console

    import java.io.BufferedReader;
    import java.io.FileWriter;
    import java.io.IOException;
    import java.io.InputStreamReader;
    import java.io.PrintWriter; 
    public class CharIOExam01 {
        public static void main(String[] args) {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            //declare a line variable to store the string entered by the keyboard               
            String line = null;     
            try {
                line = br.readLine()
            } } catch (IOException e) {
                e.printStackTrace();
            }
            //Out to Console 
            System.out.println(line);
        }
    }


2022-09-22 16:22

If you have any answers or tips


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