ObjectInputStream類skipBytes()方法
- skipBytes() 方法可在
java.io
包。 - skipBytes() 方法用於從流中跳過給定數量的字節。
- skipBytes() 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。
- skipBytes() 方法可能會在跳過字節時拋出異常。
IOException:在執行時遇到任何輸入/輸出錯誤時可能會拋出此異常。
用法:
public int skipBytes(int number);
參數:
int number
– 表示要跳過的字節數。
返回值:
該方法的返回類型是int
,它返回跳過的確切字節數。
例:
// Java program to demonstrate the example
// of int skipBytes(int number)
// method of ObjectInputStream
import java.io.*;
public class SkipBytesOfOIS {
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 writeUTF() method is to write
// the encoded string in UTF-8 to the
// obj_out_stm stream
obj_out_stm.writeUTF("JAVA WORLD");
obj_out_stm.flush();
// By using skipBytes() method is to skip
// bytes of data to the stream
int skip_byte = obj_in_stm.skipBytes(2);
System.out.println("obj_in_stm.skipBytes(2):" + skip_byte);
while (obj_in_stm.available() > 0) {
// By using readByte() method is to read
// corresponding byte from the obj_in_stm
byte val = (byte) obj_in_stm.readByte();
System.out.println("obj_in_stm.readByte():" + val);
}
// By using close() method is to
// close all the streams
file_in_stm.close();
file_out_stm.close();
obj_in_stm.close();
obj_out_stm.close();
}
}
輸出
obj_in_stm.skipBytes(2):2 obj_in_stm.readByte():74 obj_in_stm.readByte():65 obj_in_stm.readByte():86 obj_in_stm.readByte():65 obj_in_stm.readByte():32 obj_in_stm.readByte():87 obj_in_stm.readByte():79 obj_in_stm.readByte():82 obj_in_stm.readByte():76 obj_in_stm.readByte():68
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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 ObjectInputStream skipBytes() 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。