Java PrintStream append(CharSequence)方法及实例

Java中PrintStream类的append(CharSequence)方法用于在流中写入指定的CharSequence。这个CharSequence值被作为一个参数。

语法。

public PrintStream append(CharSequence charSequence)

参数。该方法接受一个强制性参数charSequence，它是要写入流中的CharSequence。

返回值。该方法返回这个PrintStream实例。

下面的方法说明了append(CharSequence)方法的工作。

程序1:

// Java program to demonstrate
// PrintStream append(CharSequence) method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a PrintStream instance
            PrintStream stream
                = new PrintStream(System.out);
  
            // Write the CharSequence 'GeeksForGeeks'
            // to this stream using append() method
            // This will put the charSequence in the stream
            // till it is printed on the console
            stream.append("GeeksForGeeks");
  
            stream.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

输出:

GeeksForGeeks

程序2。

// Java program to demonstrate
// PrintStream append(CharSequence) method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a PrintStream instance
            PrintStream stream
                = new PrintStream(System.out);
  
            // Write the CharSequence 'GFG'
            // to this stream using append() method
            // This will put the charSequence in the stream
            // till it is printed on the console
            stream.append("GFG");
  
            stream.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}