Java 中 CharArrayWriter toString()方法，带示例

原文:https://www . geeksforgeeks . org/chararraywriter-tostring-method-in-Java-with-examples/

Java 中 CharArrayWriter 类的 toString() 方法将给定的输入数据转换为字符串。

语法:

public String[] toString()

参数:此方法不接受任何参数。

返回值:该方法返回输入数据的副本。

下面的程序说明了上面的方法:

程序 1:

Java 语言(一种计算机语言，尤用于创建网站)

// Java program to illustrate the
// above mentioned method

import java.io.*;

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

        // Initializing String Witer
        CharArrayWriter geek_writer1
            = new CharArrayWriter();

        CharSequence char_sq1 = "geeks for + ";
        CharSequence char_sq2 = "geeks";

        // Use of append(CharSequence char_sq)
        geek_writer1.append(char_sq1);
        geek_writer1.append(char_sq2);

        // Convert it into string and print
        System.out.println("String : "
                           + geek_writer1.toString());
    }
}

Output: 

String : geeks for + geeks

程序 2:

Java 语言(一种计算机语言，尤用于创建网站)

// Java program to illustrate the
// above mentioned method

import java.io.*;

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

        // Initializing String Witer
        CharArrayWriter geek_writer1
            = new CharArrayWriter();

        CharSequence char_sq1 = "Gopal ";
        CharSequence char_sq2 = "Dave";

        // Use of append(CharSequence char_sq)
        geek_writer1.append(char_sq1);
        geek_writer1.append(char_sq2);

        // Convert it into string and print
        System.out.println("String : "
                           + geek_writer1.toString());
    }
}

Output: 

String : Gopal Dave

参考:https://docs . Oracle . com/javase/10/docs/API/Java/io/chararraywriter . html # toString()

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