Java 中的字符集解码器重置()方法，示例

原文:https://www . geesforgeks . org/charsetdecoder-reset-method-in-Java-with-examples/

reset() 方法是Java . nio . charset . CharsetDecoder 类的内置方法，用于重置该 charset decoder 并清除其内部状态。

语法 :

public final CharsetDecoder reset()

参数:该功能不接受任何参数。

返回值:函数复位后返回该字符集解码器。

下面是上述功能的实现:

程序 1:

// Java program to demonstrate
// the above function

import java.nio.charset.*;
import java.util.Iterator;
import java.util.Map;

public class GFG {

    public static void main(String[] args)
    {

        // Gets the charset
        Charset charset
            = Charset.forName("ISO-2022-CN");

        // Get the CharsetDecoder
        CharsetDecoder decoder
            = charset.newDecoder();

        // Prints the CharsetDecoder
        System.out.println("Before reset: "
                           + decoder);

        // Reset the CharsetDecoder
        System.out.println("After reset: "
                           + decoder.reset());
    }
}

输出:

Before reset: sun.nio.cs.ext.ISO2022_CN$Decoder@232204a1
After reset: sun.nio.cs.ext.ISO2022_CN$Decoder@232204a1

程序二:

// Java program to demonstrate
// the above function

import java.nio.charset.*;
import java.util.Iterator;
import java.util.Map;

public class GFG {

    public static void main(String[] args)
    {

        // Gets the charset
        Charset charset
            = Charset.forName("x-windows-949");

        // Get the CharsetDecoder
        CharsetDecoder decoder
            = charset.newDecoder();

        // Prints the CharsetDecoder
        System.out.println("Before reset: "
                           + decoder);

        // Reset the CharsetDecoder
        System.out.println("After reset: "
                           + decoder.reset());
    }
}

输出:

Before reset: sun.nio.cs.ext.DoubleByte$Decoder@232204a1
After reset: sun.nio.cs.ext.DoubleByte$Decoder@232204a1

参考:https://docs . Oracle . com/javase/9/docs/API/Java/nio/charset/charset decoder . html # reset–

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