java parallel stream

serialization */int age; class, the serial number is customized, and the compiler does not calculate the serial number (even if the Java code is modified after saving to the file) private static final long serialversionuid = 1478652478456L; Tostring,init,get,set method ...}1. Writing objects to the file/* * ObjectOutputStream * Construction method: ObjectOutputStream (Outputsteam out) * Pass arbitrary byte output

Io Stream and Propertiesio streamAn IO stream is an interface between a computer and the outside world or between a program and the rest of the computer. It is critical for any computer system,Thus the body of all I/O is actually built into the operating system. Separate programs generally allow the system to do most of the work for them.In Java programming, I/O

voidWriteChar[] Cbuf,intOffintlen)9 writes a portion of a character array. Ten voidWriteintc) One writes a single character. A voidWrite (String s,intOffintlen) -Writes a portion of a string.(3)bufferedwriter Use code example:1 Packagecn.itcast_05;2 3 ImportJava.io.BufferedWriter;4 ImportJava.io.FileWriter;5 Importjava.io.IOException;6 7 /*8 * BufferedWriter: character buffered output stream 9 * writes text to the character output

The input and output of Java is based on 4 abstract classes: InputStream, OutputStream, Reader, Writer. Inputsream and OutputStream are designed as byte-stream classes, while reader and writer are designed as character stream classes. In general, you should use a character stream class when working with characters or s

) {bao.write (i); } System.out.println (Bao.tostring ()); }}Data flowDataInputStream: The data input stream allows the application to read basic Java data types from the underlying input stream in a machine-independent manner. The application can use the data output stream to write data that is later read by the dat

Java IO learning notes (3) Conversion stream, data stream, byte array stream, and io learning notes Conversion stream1. Conversion stream: Convert byte streams to a bytes stream. After conversion, you can write content to the prog

;ImportJava.io.FileInputStream;ImportJava.io.FileOutputStream;ImportJava.io.IOException;ImportJava.io.InputStreamReader;ImportJava.io.OutputStreamWriter;/** * Convert stream: Byte to character * 1, output stream outputstreamwriter encode * 2, input stream InputStreamReader decode */ Public class Demo02 { Public Static void Main(string[] args)throwsIOExceptio

=NewInputStreamReader (NewFileInputStream (File1), "GBK"); InputStreamReader ISR2=NewInputStreamReader (NewFileInputStream (File2), "Utf-8"); OutputStreamWriter OSW=NewOutputStreamWriter (NewFileOutputStream (DestFile,true), "Utf-8"); intLen; Char[] buf=New Char[1024]; while((Len=isr1.read (BUF))!=-1) {osw.write (buf,0, Len); Osw.flush (); } while((Len=isr2.read (BUF))!=-1) {osw.write (buf,0, Len); Osw.flush (); } osw.close (); Isr1.close (); Isr2.clos

character buffer input stream object -BufferedReader br =NewBufferedReader (NewFileReader ("Bw2.txt")); - - //Public String ReadLine (): reads one row of data at a time - //String line = Br.readline (); in //System.out.println (line); - //Line = Br.readline (); to //System.out.println (line); + - //The final version of the code theString line =NULL; * while(line = Br.readline ())! =NULL) { $

Java IO stream byte output stream OutputString (), output stream outputstring One of the key points of Java learning: Use of the OutputStream byte output stream FileOutPutStream: a subclass that specifies the channel for writing d