Java 中 PrintWriter println(char)方法，示例

原文:https://www . geesforgeks . org/print writer-printlnchar-method-in-Java-with-examples/

Java 中 PrintWriter 类的 println(char) 方法是将指定的 char 值打印在流上，然后换行。这个字符值被作为一个参数。

语法:

public void println(char charValue)

参数:该方法接受一个强制参数 charValue ，即要写入流的 char 值。

返回值:此方法不返回值。

下面的方法说明了 println(char)方法的工作原理:

程序 1:

// Java program to demonstrate
// PrintWriter println(char) method

import java.io.*;

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

        try {

            // Create a PrintWriter instance
            PrintWriter printr
                = new PrintWriter(System.out);

            // Print the char value 'A'
            // to this stream using println() method
            // This will put the charValue in the
            // stream till it is printed on the console
            printr.println('A');

            printr.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:

A

程序 2:

// Java program to demonstrate
// PrintWriter println(char) method

import java.io.*;

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

        try {

            // Create a PrintWriter instance
            PrintWriter printr
                = new PrintWriter(System.out);

            // Print the char value 'G'
            // to this stream using println() method
            // This will put the charValue in the
            // stream till it is printed on the console
            printr.println('G');

            printr.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:

G

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