Creating a Scanner: read from standard input: Scanner conin = new Scanner(System.in) : Scanner « File « Java Tutorial

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Java Tutorial » File » Scanner

11. 54. 4. Creating a Scanner: read from standard input: Scanner conin = new Scanner(System.in)


import java.util.Scanner;



public class MainClass {

  public static void main(String args[]) {

    Scanner conin = new Scanner(System.in);



    int count = 0;



    System.out.println("Enter numbers to average.");



    while (conin.hasNext()) {

      if (conin.hasNextDouble()) {

        System.out.println(conin.nextDouble()); 

        count++;

      }

      if(count == 3){

        System.exit(0);

        

      }

    }



  }

}

11. 54. Scanner
	11. 54. 1.	Using Scanner to receive user input
	11. 54. 2.	Using Scanner: the complement of Formatter
	11. 54. 3.	In general, to use Scanner, follow this procedure
	11. 54. 4.	Creating a Scanner: read from standard input: Scanner conin = new Scanner(System.in)
	11. 54. 5.	Creating a Scanner to read from a string
	11. 54. 6.	Using Scanner to read several different unknown types of data
	11. 54. 7.	Setting Delimiters for Scanner
	11. 54. 8.	To obtain the current delimiter pattern: Pattern delimiter( )
	11. 54. 9.	Searching for the specified pattern within the next line of text
	11. 54. 10.	To find within the next count characters

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