Java ObjectOutputStream writeInt（）方法及示例

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Java ObjectOutputStream writeInt（）方法及示例

2024-07-17 22:14| 来源: 网络整理| 查看: 265

ObjectOutputStream类writeInt()方法 (ObjectOutputStream Class writeInt() method)

writeInt() method is available in java.io package.

writeInt()方法在java.io包中可用。

writeInt() method is used to write the given 4 bytes of an integer value.

writeInt()方法用于写入给定的4个字节的整数值。

writeInt() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

writeInt()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

writeInt() method may throw an exception at the time of writing an integer.

writeInt()方法在写入整数时可能会引发异常。

IOException: This exception may throw when getting any input/output error while writing to the output stream.

IOException ：在写入输出流时遇到任何输入/输出错误时，可能引发此异常。

Syntax:

句法：

public void writeInt(int value);

Parameter(s):

参数：

int value – represents the integer value to be written.

int value –表示要写入的整数值。

Return value:

返回值：

The return type of the method is void, it returns nothing.

该方法的返回类型为void ，不返回任何内容。

Example:

例：

// Java program to demonstrate the example // of void writeInt(int value) method of // ObjectOutputStream import java.io.*; public class WriteIntOfOOS { 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 writeInt() method is to // write the int to the stream obj_out_stm.writeInt(100); obj_out_stm.writeInt(200); obj_out_stm.writeInt(300); obj_out_stm.writeInt(400); obj_out_stm.flush(); // By using readInt() method is to // read the int for (int i = 0; i < 4; ++i) { int in = obj_in_stm.readInt(); System.out.println("obj_in_stm.readInt(): " + in ); } // 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(); } }

Output

输出量

obj_in_stm.readInt(): 100 obj_in_stm.readInt(): 200 obj_in_stm.readInt(): 300 obj_in_stm.readInt(): 400 Stream Shutdown...

翻译自: https://www.includehelp.com/java/objectoutputstream-writeint-method-with-example.aspx

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Java ObjectOutputStream writeInt（）方法及示例

Java ObjectOutputStream writeInt（）方法及示例

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