java Java 中 ObjectInputStream readBoolean()方法，带示例

Java 中 ObjectInputStream readBoolean()方法，带示例

原文:https://www . geesforgeks . org/objectinputstream-readboolean-in-Java-method-with-examples/

Java 中 ObjectInputStream 类的 readBoolean() 方法从流中读取一个布尔值。

语法:

public boolean readBoolean()

参数:此方法不接受任何参数。

返回值:这个方法返回已经读取的布尔值。

错误和异常:函数抛出两个异常，描述如下:

EOFException: 如果到达文件末尾，则抛出该函数。
IOException: 如果出现输入/输出错误，将引发该函数。

下面的程序说明了上面的方法:

程序 1:

// Java program to illustrate
// the above method

import java.io.*;

public class GFG {
    public static void main(String[] args)
    {
        try {

            // create a new file
            // with an ObjectOutputStream
            FileOutputStream out
                = new FileOutputStream("gopal.txt");
            ObjectOutputStream out1
                = new ObjectOutputStream(out);

            // write
            out1.writeUTF("Geeks for Geeks");

            // Flushes the stream
            out1.flush();

            // create an ObjectInputStream
            // for the file
            ObjectInputStream example
                = new ObjectInputStream(
                    new FileInputStream("gopal.txt"));

            // Read from the stream
            for (int i = 0; i < example.available();) {
                System.out.print("" + (char)example.read());
            }
        }
        catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}