Example usage for java.util Scanner Scanner

Introduction

In this page you can find the example usage for java.util Scanner Scanner.

Prototype

public Scanner(ReadableByteChannel source)

Source Link

Document

Constructs a new Scanner that produces values scanned from the specified channel.

Usage

From source file:Main.java

public static void main(String[] args) {

    String s = "java2s.com 1 + 1 = 2.0 ";

    Scanner scanner = new Scanner(s);

    // check if next token is "java"
    System.out.println(scanner.hasNext("java"));

    // find the last match and print it
    System.out.println(scanner.match());

    System.out.println(scanner.nextLine());

    scanner.close();/*from  w  w  w  .j av  a2 s  . c  om*/
}

From source file:MainClass.java

public static void main(String args[]) {
    Scanner conin = new Scanner(System.in);

    int count = 0;
    double sum = 0.0;

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

    while (conin.hasNext()) {
        if (conin.hasNextDouble()) {
            sum += conin.nextDouble();/*  w  w  w  .j a v a2  s.  c om*/
            count++;
        } else {
            String str = conin.next();
            if (str.equals("done"))
                break;
            else {
                System.out.println("Data format error.");
                return;
            }
        }
    }

    System.out.println("Average is " + sum / count);
}

From source file:Main.java

public static void main(String[] args) {

    String s = "java2s.com 1 + 1 = 2.0 true ";

    Scanner scanner = new Scanner(s);

    while (scanner.hasNext()) {
        if (scanner.hasNextShort()) {
            System.out.println("Found :" + scanner.nextShort());
        }//from w  w  w.j a  va 2  s. co m
        System.out.println("Not Found :" + scanner.next());
    }
    scanner.close();
}

From source file:Main.java

public static void main(String[] args) {

    String s = "java2s.com false 1 + 1 = 2.0";

    Scanner scanner = new Scanner(s);

    while (scanner.hasNext()) {
        // check if the scanner's next token is a boolean
        System.out.println(scanner.hasNextBoolean());

        System.out.println(scanner.next());
    }/*from w w w .j a va  2  s.  c  o  m*/
    scanner.close();
}

From source file:Main.java

public static void main(String[] args) {

    String s = "java2s.com 1 + 1 = 2.0 true ";
    Scanner scanner = new Scanner(s);

    System.out.println(scanner.nextLine());

    // change the radix of the scanner
    scanner.useRadix(32);//from ww  w  .  jav  a  2  s. c  o  m

    // display the new radix
    System.out.println(scanner.radix());

    scanner.close();
}

From source file:Main.java

public static void main(String[] args) {

    String s = "java2s.com 1 + 1 = 2.0 true ";

    Scanner scanner = new Scanner(s);

    while (scanner.hasNext()) {
        if (scanner.hasNextShort()) {
            System.out.println("Found :" + scanner.nextShort(4));
        }//from w ww . j  a v a 2s  .c  om
        System.out.println("Not Found :" + scanner.next());
    }

    scanner.close();
}

From source file:Main.java

public static void main(String[] args) {

    String s = "java2s.com \n 1 + 1 = 2.0 true ";

    Scanner scanner = new Scanner(s);

    // print the next line
    System.out.println(scanner.nextLine());

    // print the next line again
    System.out.println(scanner.nextLine());

    scanner.close();/*from   w  w w.  j  a  v  a2 s  . c o  m*/
}

From source file:Main.java

public static void main(String[] args) {

    String s = "java2s.com 1 + 1 = 2.0 true ";

    Scanner scanner = new Scanner(s);

    while (scanner.hasNext()) {

        if (scanner.hasNextInt()) {
            System.out.println("Found :" + scanner.nextInt());
        }//from  ww  w.j a  v a 2 s.c  o  m
        System.out.println("Not Found :" + scanner.next());
    }

    scanner.close();
}

From source file:Main.java

public static void main(String[] args) {

    String s = "java2s.com 1 + 1 = 2.0 true ";

    Scanner scanner = new Scanner(s);

    System.out.println(scanner.nextLine());

    // change the delimiter of this scanner
    scanner.useDelimiter("Wor");

    // display the new delimiter
    System.out.println(scanner.delimiter());

    scanner.close();/*from w  ww  . j  av a2  s. c  om*/
}

From source file:Main.java

public static void main(String[] args) {

    String s = "java2s.com 1 + 1 = 2.0  true";

    Scanner scanner = new Scanner(s);

    while (scanner.hasNext()) {

        // if the next is byte, print found and the byte
        if (scanner.hasNextByte()) {
            System.out.println("Found :" + scanner.nextByte());
        }/*from w w w  .  j  a  v a 2s . c  o m*/
        System.out.println("Not Found :" + scanner.next());
    }

    scanner.close();
}