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How can i write more than one string in one line?


How can i write more than one string in one line?

By : user3038453
Date : November 24 2020, 05:49 AM
like below fixes the issue Let's get rid of Streams and Writers and use File.WriteAllLines instead. String interpolation (strings like $"...{}...") will help us to write in desired format:
code :
using (SaveFileDialog sfd = new SaveFileDialog()) {
  if (sfd.ShowDialog())
    File.WriteAllLines(sfd.FileName, new String[] {
      $"Sertifikasyon={Sertifikasyon.Text}",
      $"Type={ACType.Text}",
      $"Flight Type={FlightType.Text}",
      ...
      $"Fuel={Rresfuel.Text}"
    });
}


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How to write Java code that return a line of string into a string variable from Arduino?

How to write Java code that return a line of string into a string variable from Arduino?


By : user2542073
Date : March 29 2020, 07:55 AM
Hope that helps How do I make the serial send and receive (RX/TX) code below work like a buffer until Sets a specific byte to buffer until before calling serialEvent() in , Solved it ....
code :
package smartOfficeJava;

import gnu.io.CommPort;
import gnu.io.CommPortIdentifier;
import gnu.io.SerialPort;
import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * This version of the TwoWaySerialComm example makes use of the 
 * SerialPortEventListener to avoid polling.
 *
 */
public class Arduino
{
    OutputStream out;
    SerialReader input;
    public Arduino()
    {
        super();
    }

    void connect ( String portName ) throws Exception
    {
        CommPortIdentifier portIdentifier = CommPortIdentifier.getPortIdentifier(portName);
        if ( portIdentifier.isCurrentlyOwned() )
        {
            System.out.println("Error: Port is currently in use");
        }
        else
        {
            CommPort commPort = portIdentifier.open(this.getClass().getName(),2000);

            if ( commPort instanceof SerialPort )
            {
                SerialPort serialPort = (SerialPort) commPort;
                serialPort.setSerialPortParams(9600,SerialPort.DATABITS_8,SerialPort.STOPBITS_1,SerialPort.PARITY_NONE);

                InputStream in = serialPort.getInputStream();
                out = serialPort.getOutputStream();

                //(new Thread(new SerialWriter(out))).start();
                input = new SerialReader(in);
                serialPort.addEventListener(input);
                serialPort.notifyOnDataAvailable(true);
                Thread.sleep(3000);
                out.write("yes".getBytes());   

            }
            else
            {
                System.out.println("Error: Only serial ports are handled by this example.");
            }
        }     
    }

    /**
     * Handles the input coming from the serial port. A new line character
     * is treated as the end of a block in this example. 
     */
    public static class SerialReader implements SerialPortEventListener 
    {
        private InputStream in;
        private byte[] buffer = new byte[1024];
        String buffer_string;
        public SerialReader ( InputStream in )
        {
            this.in = in;
        }

        public void serialEvent(SerialPortEvent arg0) {
            int data;

            try
            {
                int len = 0;
                while ( ( data = in.read()) > -1 )
                {
                    if ( data == '\n' ) {
                        break;
                    }
                    buffer[len++] = (byte) data;
                }
                //System.out.print(new String(buffer,0,len));
                buffer_string = new String(buffer,0,len);
            }
            catch ( IOException e )
            {
                e.printStackTrace();
                System.exit(-1);
            }             
        }

    }

    /** 
    public static class SerialWriter implements Runnable 
    {
        OutputStream out;

        public SerialWriter ( OutputStream out )
        {
            this.out = out;
        }

        public void run ()
        {
            try
            {                
                int c = 0;
                while ( ( c = System.in.read()) > -1 )
                {
                    this.out.write(c);
                }                
            }
            catch ( IOException e )
            {
                e.printStackTrace();
                System.exit(-1);
            }            
        }
    }*/

   public String getSensor(){
       try
       {                
               this.out.write("yes".getBytes());              
       }
       catch ( IOException e )
       {
           e.printStackTrace();
       }  
       try {
        Thread.sleep(3000);
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
       return (input.buffer_string).trim();

   }

    public static void main ( String[] args )
    {
        Arduino test;
        try
        {
            test = new Arduino();
            test.connect("COM3");
            System.out.println(test.getSensor());
            System.out.println(test.getSensor());
            System.out.println(test.getSensor());
        }
        catch ( Exception e )
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }


}
c write the string to file line by line

c write the string to file line by line


By : user3170834
Date : March 29 2020, 07:55 AM
hop of those help? fwrite don't work, what's wrong with my code? , fwrite does not do formatted output like that, you need fprintf:
code :
fprintf (fp, "%d\n", tree->pop);
size_t fwrite (const void *restrict buff,
               size_t               sz,
               size_t               num,
               FILE *restrict       hndl);
static void printTreeRecur (FILE *fp, struct recordNode* tree) {
    if (tree == NULL) return;

    printTreeRecur (fp, tree->right);
    fprintf (fp, "%d\n", tree->pop);
    printTreeRecur (fp, tree->left);
}

void printTree (struct recordNode* tree) {
    FILE *fp = fopen ("test.txt", "w");
    if (fp != NULL) {
        printTreeRecur (fp, tree);
        fclose(fp);
    }
}
Java - write string to file line by line vs one-liner / cannot convert String to String[]

Java - write string to file line by line vs one-liner / cannot convert String to String[]


By : john wang
Date : March 29 2020, 07:55 AM
will be helpful for those in need From your code comments, finalDataA has one element, so the for-loop will be executed only once. Try splitting finalDataA[0] into rows. Something like this:
code :
    String endOfLineToken = "..."; //your variant
    String[] lines = finalDataA[0].split(endOfLineToken)
    BufferdWriter bw = new BufferedWriter(new FileWriter(pathA, true));
    try 
    {
       for (String line: lines)
       {
           bw.write(line);
           bw.write(endOfLineToken);//to put back line endings
           bw.newLine();
           bw.flush();
       }
    }
    catch (Exception e) {}
BufferedWriter write string line by line

BufferedWriter write string line by line


By : nisarg rotliwala
Date : March 29 2020, 07:55 AM
I hope this helps . You either need to use System.lineSeparator() while writing text to file or change your toString() method to add a line separator between each line or object added
Edit Your code writes your string as separate line only. Try reading the lines from output file and print each line, you will see that the reader treats each detail as separate line. Now if you wish to write it into the file with exact format so that it is shown in next line in file u have to give the inputs separately maybe by adding the objects to an ArrayList and iterating the same.
Java How to Write Spesific String to Txt File Line By Line(Tesseract Output)

Java How to Write Spesific String to Txt File Line By Line(Tesseract Output)


By : Paul Archibald
Date : March 29 2020, 07:55 AM
Any of those help You need to invoke printWriter.write("\r\n"); or printWriter.write(System.lineSeparator()) depends on your operation system
code :
try {

    String result = instance.doOCR(imageFile);
    FileWriter writer = new FileWriter("C:\\testfiles\\enes.txt");
    try(PrintWriter printWriter = new PrintWriter(writer)){
    printWriter.write(result);
    printWriter.write("\r\n");
}
   System.out.println(result);
} catch (Exception e) {
        System.err.println(e.getCause());
}
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