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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