ObjectInputStream類readUnshared()方法
- readUnshared() 方法可在
java.io
包。 - readUnshared() 方法用於從 ObjectInputStream 中讀取 "non-shared" 或 "unshared" 對象。
- readUnshared() 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。
-
readUnshared() 方法可能在讀取非共享對象時拋出異常。
- 流損壞異常: 當流中的控製信息不一致時可能會拋出此異常。
- IOException:在執行時遇到任何輸入/輸出錯誤時可能會拋出此異常。
- 類未找到異常:當序列化對象類不存在時,可能會拋出此異常。
- 可選數據異常:當發現意外的原始數據而不是對象時,可能會拋出此異常。
用法:
public Object readUnshared();
參數:
- 它不接受任何參數。
返回值:
該方法的返回類型是Object
,它返回對反序列化對象的引用。
例:
// Java program to demonstrate the example
// of Object readUnshared() method of
// ObjectInputStream
import java.io.*;
public class ReadUnsharedOfOIS {
public static void main(String[] args) throws Exception {
Integer in = new Integer(10);
// 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 writeUnshared() method is to write
// unshared object to the obj_out_stm stream
obj_out_stm.writeUnshared( in );
obj_out_stm.flush();
// By using readUnshared() method is to read
// unshared object and display fields
Object o = (Object) obj_in_stm.readUnshared();
System.out.println("obj_in_stm.readUnshared():" + o);
}
}
輸出
obj_in_stm.readUnshared():10
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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 readUnshared() 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。