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Is there a way to give an automated Scanner input from a method in Java?


Is there a way to give an automated Scanner input from a method in Java?

By : user6021788
Date : October 16 2020, 06:10 PM
wish help you to fix your issue use a third parameter input which has three possible values. say no_data, yes, no
code :
Matrix(int rowSize, int colSize, String input) {
  Scanner scan;
  String myChoice;
  if (!input.equals("no_data") {
      scan = new Scanner(System.in);
      System.out.println("Do you want randomized elements?");
      myChoice = scan.nextLine();
    } else {
      myChoice = input;
    }
    if (Pattern.matches("(?i)[ye]+s*", myChoice)) {
      NewMat(rowSize, colSize, 1);
    } else {
      NewMat(rowSize, colSize, 0);
    }
    System.out.println(GetMat());
  }
}
Matrix matrix1 = new Matrix(4,4,"yes");


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jQuery: Listening for automated scanner input from keyboard?

jQuery: Listening for automated scanner input from keyboard?


By : user2604618
Date : March 29 2020, 07:55 AM
Hope that helps I think you want to do this by storing what you've received so far and checking to see if it's valid. If it is not, discard what you have received and start again:
code :
$(document).ready(function(){
    var input = '',
        r1 = /^~{1,2}$/,
        r2 = /^~{2}\d+$/,
        r3 = /^~{2}\d+\.$/,
        r4 = /^~{2}\d+\.\d+$/,
        r5 = /^~{2}\d+\.\d+~{1}$/
        r6 = /^~{2}\d+\.\d+~{2}$/;

    $(window).keypress(function(e) {
        input += String.fromCharCode(e.which);

        if (r1.test(input) || r2.test(input) || r3.test(input) || r4.test(input) || r5.test(input)) {
            // input is valid so far, continue
        } else if (r6.test(input) {
            // input is valid and complete
            check_out_book();
        } else {
            // input is invalid, start over
            input = '';
        }
    });
});
Java Scanner Take Input, call a method, then back to read more input not working

Java Scanner Take Input, call a method, then back to read more input not working


By : helpmeplease
Date : March 29 2020, 07:55 AM
seems to work fine I've managed to fix the issue.
In both my main method and my pressPlay() method, I was creating separate scanners taking input from System.in, and this was causing problems as it would no longer take input from the main method. Instead I took the Scanner out of the main method and put it after public class PlayGame {, and used this same scanner in both of my methods, rather than separate ones.
In java, how do I store each scanner input in a 'for' loop to another method?

In java, how do I store each scanner input in a 'for' loop to another method?


By : XarcXarc
Date : March 29 2020, 07:55 AM
hop of those help? The line is in the local scope of the method and therefore, it is reset every time the method is called. You need to make it an instance variable, so that for every instance created, it preserves the value for that instance.
code :
public class ProcessInput {
    String line = ""; // outside the paste method, in the class
    public void paste(String feedback) {
        line += feedback;
        System.out.println(line);
    }
}
difference between java.util.Scanner input = new Scanner () and import Scanner in main class

difference between java.util.Scanner input = new Scanner () and import Scanner in main class


By : Igor Rajnjak
Date : March 29 2020, 07:55 AM
I wish this help you Both are same , if you have class names conflict ion you can use class with package name.
method scanner input java?

method scanner input java?


By : sunil kumar Sharma
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I'm trying to make a method that will ask the user the amount, then it checks if the amount if >0 and if it is the loop ends and if the input isnt >0 then the loop continues until proper data is entered. I can't figure out my problem.. , Try this!!!
import java.util.Scanner;
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