Example usage for java.lang System in

Introduction

In this page you can find the example usage for java.lang System in.

Prototype

InputStream in

To view the source code for java.lang System in.

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Document

The "standard" input stream.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    DatagramSocket udpSocket = new DatagramSocket();
    String msg = null;// www.  j a v a  2 s  . c o  m
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    System.out.print("Please enter a  message  (Bye  to quit):");
    while ((msg = br.readLine()) != null) {
        if (msg.equalsIgnoreCase("bye")) {
            break;
        }
        DatagramPacket packet = Main.getPacket(msg);
        udpSocket.send(packet);
        udpSocket.receive(packet);
        displayPacketDetails(packet);
        System.out.print("Please enter a  message  (Bye  to quit):");
    }
    udpSocket.close();
}

From source file:ReadZip.java

public static void main(String args[]) {
    try {//  w  ww .  j  a  va 2 s . c om
        ZipFile zf = new ZipFile("ReadZip.zip");
        Enumeration entries = zf.entries();

        BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
        while (entries.hasMoreElements()) {
            ZipEntry ze = (ZipEntry) entries.nextElement();
            System.out.println("Read " + ze.getName() + "?");
            String inputLine = input.readLine();
            if (inputLine.equalsIgnoreCase("yes")) {
                long size = ze.getSize();
                if (size > 0) {
                    System.out.println("Length is " + size);
                    BufferedReader br = new BufferedReader(new InputStreamReader(zf.getInputStream(ze)));
                    String line;
                    while ((line = br.readLine()) != null) {
                        System.out.println(line);
                    }
                    br.close();
                }
            }
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static void main(String args[]) throws java.io.IOException {
    char choice;//w  ww  .j  av  a2s.  c om
    do {
        System.out.println("Help on:");
        System.out.println(" 1. A");
        System.out.println(" 2. B");
        System.out.println(" 3. C");
        System.out.println(" 4. D");
        System.out.println(" 5. E");
        System.out.println("Choose one:");
        choice = (char) System.in.read();
    } while (choice < '1' || choice > '5');
    System.out.println("\n");
    switch (choice) {
    case '1':
        System.out.println("A");
        break;
    case '2':
        System.out.println("B");
        break;
    case '3':
        System.out.println("C");
        break;
    case '4':
        System.out.println("D");
        break;
    case '5':
        System.out.println("E");
        break;
    }
}

From source file:DateFormatFile.java

public static void main(String[] args) throws IOException {
    DateFormatFile df = new DateFormatFile();
    BufferedReader is = new BufferedReader(new InputStreamReader(System.in));
    String line;//w w  w  . j a  va 2  s  . com
    while ((line = is.readLine()) != null) {
        df.process(line);
    }
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    String hostname = "localhost";

    Socket theSocket = new Socket(hostname, 7);
    BufferedReader networkIn = new BufferedReader(new InputStreamReader(theSocket.getInputStream()));
    BufferedReader userIn = new BufferedReader(new InputStreamReader(System.in));
    PrintWriter out = new PrintWriter(theSocket.getOutputStream());
    System.out.println("Connected to echo server");

    while (true) {
        String theLine = userIn.readLine();
        if (theLine.equals("."))
            break;
        out.println(theLine);//ww w  .  ja va  2  s . c om
        out.flush();
        System.out.println(networkIn.readLine());
    }
    networkIn.close();
    out.close();
}

From source file:InputOutputDemoStandardInputOutput.java

public static void main(String[] a) throws Exception {

    //Write characters to standard output and standard error:
    System.out.println("std output");
    System.err.println("std error");
    //Read characters from standard input (the keyboard):
    System.out.print("Type some characters and press Enter: ");
    BufferedReader bisr = new BufferedReader(new InputStreamReader(System.in));
    String response = bisr.readLine();
    System.out.println("You typed: '" + response + "'");
    //Read a byte from standard input (the keyboard):
    System.out.print("Type one character and press Enter: ");
    byte b = (byte) System.in.read();
    System.out.println("First byte of your input is: " + b);
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    SSLSocketFactory sf = (SSLSocketFactory) SSLSocketFactory.getDefault();
    Socket s = sf.createSocket(HOST, PORT);
    OutputStream out = s.getOutputStream();
    out.write("\nConnection established.\n\n".getBytes());
    out.flush();/*from  ww  w  . j  av a2s . c om*/
    int theCharacter = 0;
    theCharacter = System.in.read();
    while (theCharacter != '~') // The '~' is an escape character to exit
    {
        out.write(theCharacter);
        out.flush();
        theCharacter = System.in.read();
    }

    out.close();
    s.close();
}

From source file:com.skynetcomputing.skynettools.Main.java

/**
 * @param args the command line arguments
 *///from   w  ww . ja  va 2s .  com
public static void main(String[] args) throws IOException {
    Scanner s = new Scanner(System.in);
    boolean isRunning = true;
    while (isRunning) {
        System.out.println("Enter file path for MD5 hash. Leave empty to quit");
        String input = s.nextLine();
        isRunning = !input.isEmpty();
        if (isRunning) {
            File inputFile = new File(input);
            if (inputFile.length() > 0) {
                try (FileInputStream fis = new FileInputStream(inputFile)) {
                    String md5 = org.apache.commons.codec.digest.DigestUtils.md5Hex(fis);
                    System.out.println("MD5: " + md5);
                }
            }
        }
    }

}

From source file:Matrix_Operations.java

public static void main(String[] args) {

    Scanner keyboard = new Scanner(System.in);

    //Allow user to enter number of columns
    int rows = getRowsNumberFromUser();
    int columns = getColumnNumberFromUser();
    double matrixA[][] = new double[rows][columns];

    //Enter values for matrix
    System.out.println("Enter values for each position in the matrix below. ");
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < columns; j++) {
            matrixA[i][j] = keyboard.nextDouble();

        }/*from  ww  w  . j a  v a2 s.  c  om*/
        System.out.println("");
    }

    showMatrix(matrixA);
    System.out.println("");
    RealMatrix A = MatrixUtils.createRealMatrix(matrixA);

    LUDecomposition lu = new LUDecomposition(A);

    showMatrix(matrixA);

    System.out.println(lu.getDeterminant());

}

From source file:andy.zhang.dubbo.app.Main.java

public static void main(String[] args) throws Exception {
    ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
            new String[] { "applicationProvider.xml" });
    context.start();//from  ww w. j  a v a2 s . c  om
    System.out.println("?");
    System.in.read();
}