Java 中 PrintWriter println(字符串)方法，示例

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

Java 中 PrintWriter 类的 println(String) 方法用于在流上打印指定的字符串，然后换行。该字符串被视为参数。

语法:

public void println(String string)

参数:此方法接受一个强制参数字符串，它是要在流中打印的字符串。

返回值:此方法不返回值。

下面的方法说明了 println(字符串)方法的工作原理:

程序 1:

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

import java.io.*;

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

        try {

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

            // Get the String
            // to be printed in the stream
            String string = "GeeksForGeeks";

            // print the string
            // to this writer using print() method
            // This will put the string in the stream
            // till it is printed on the console
            writer.println(string);

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

Output:

GeeksForGeeks

程序 2:

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

import java.io.*;

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

        try {

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

            // Get the String
            // to be printed in the stream
            String string = "GFG";

            // print the string
            // to this writer using print() method
            // This will put the string in the stream
            // till it is printed on the console
            writer.println(string);

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

Output:

GFG

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