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PrintStream append(CharSequence, int, int) method in Java with Examples

  • Last Updated : 31 Jan, 2019
Geek Week

The append(CharSequence, int, int) method of PrintStream Class in Java is used to append a specified portion of the specified charSequence on the stream. This charSequence is taken as a parameter. The starting index and ending index to be written are also taken as parameters.

Syntax:

public void append(CharSequence charSequence, int startingIndex, int endingIndex)

Parameters: This method accepts three mandatory parameters:

  • charSequence which is the charSequence to be written in the Stream.
  • startingIndex which is the starting index from which the portion of character is to taken.
  • endingIndex which is the ending index to be written on the stream.

Return Value: This method do not returns any value.



Below methods illustrates the working of append(CharSequence, int, int) method:

Program 1:




// Java program to demonstrate
// PrintStream append(CharSequence, int, int) method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a PrintStream instance
            PrintStream stream
                = new PrintStream(System.out);
  
            // Get the charSequence
            // to be written in the stream
            CharSequence charSequence = "GeeksForGeeks";
  
            // Get the starting index
            int startingIndex = 0;
  
            // Get the length of char
            int endingIndex = 5;
  
            // Write the portion of the charSequence
            // to this stream using append() method
            // This will put the charSequence in the stream
            // till it is printed on the console
            stream.append(charSequence,
                          startingIndex,
                          endingIndex);
  
            stream.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}
Output:
Geeks

Program 2:




// Java program to demonstrate
// PrintStream append(CharSequence, int, int) method
  
import java.io.*;
  
class GFG {
    public static void main(String[] args)
    {
  
        try {
  
            // Create a PrintStream instance
            PrintStream stream
                = new PrintStream(System.out);
  
            // Get the charSequence
            // to be written in the stream
            CharSequence charSequence = "GFG";
  
            // Get the starting index
            int startingIndex = 2;
  
            // Get the length of char
            int endingIndex = 3;
  
            // Write the portion of the charSequence
            // to this stream using append() method
            // This will put the charSequence in the stream
            // till it is printed on the console
            stream.append(charSequence,
                          startingIndex,
                          endingIndex);
  
            stream.flush();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}
Output:
G

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