ObjectOutputStream類writeBytes()方法
- writeBytes() 方法可在
java.io
包。 - writeBytes() 方法用於將給定的字符串寫為字節序列。
- writeBytes() 方法是一個非靜態方法,它隻能通過類對象訪問,如果我們嘗試使用類名訪問方法,那麽我們將得到一個錯誤。
- writeBytes() 方法可能在寫入字節時拋出異常。
IOException:在寫入輸出流時出現任何輸入/輸出錯誤時,可能會拋出此異常。
用法:
public void writeBytes(String s);
參數:
String s
– 表示要寫入的字符串。
返回值:
該方法的返回類型是void
,它什麽都不返回。
例:
// Java program to demonstrate the example
// of void writeBytes(String s) method of
// ObjectOutputStream
import java.io.*;
public class WriteBytesOfOOS {
public static void main(String[] args) throws Exception {
// Instantiates ObjectOutputStream , ObjectInputStream
// FileInputStream and FileOutputStream
FileOutputStream file_out_stm = new FileOutputStream("D:\\includehelp.txt");
ObjectOutputStream obj_out_stm = new ObjectOutputStream(file_out_stm);
FileInputStream file_in_stm = new FileInputStream("D:\\includehelp.txt");
ObjectInputStream obj_in_stm = new ObjectInputStream(file_in_stm);
// By using writeBytes() method is to
// write the bytes to the stream
obj_out_stm.writeBytes("Java");
obj_out_stm.flush();
// By using readByte() method is to
// read the byte and convert it into
// char
for (int i = 0; i < 4; ++i) {
char ch = (char) obj_in_stm.readByte();
System.out.println("obj_in_stm.readByte():" + ch);
}
// By using close() method is to
// close all the streams
System.out.println("Stream Shutdown... ");
file_in_stm.close();
file_out_stm.close();
obj_in_stm.close();
obj_out_stm.close();
}
}
輸出
obj_in_stm.readByte():J obj_in_stm.readByte():a obj_in_stm.readByte():v obj_in_stm.readByte():a Stream Shutdown...
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注:本文由純淨天空篩選整理自Preeti Jain大神的英文原創作品 Java ObjectOutputStream writeBytes() Method with Example。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。