Java - StringWriter write(int c) method

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Description

The Java StringWriter write(int c) method writes a single character.

Declaration

Following is the declaration for java.io.StringWriter.write(int c) method.

public void write(int c)

Parameters

• c − int specifying a character to be written.

Return Value

This method does not return a value.

Exception

NA

Example - Usage of StringWriter write(int c) method

The following example shows the usage of StringWriter write(int c) method.

StringWriterDemo.java

package com.tutorialspoint;

import java.io.StringWriter;

public class StringWriterDemo {
   public static void main(String[] args) {
   
      // create a new writer
      StringWriter sw = new StringWriter();

      // write integers that correspond to ascii code
      sw.write(70);
      sw.write(76);

      // print result by converting to string
      System.out.println("" + sw.toString());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

FL

Example - Writing a Single Character

The following example shows the usage of StringWriter write(int c) method.

StringWriterDemo.java

package com.tutorialspoint;

import java.io.StringWriter;

public class StringWriterDemo {
   public static void main(String[] args) {
      StringWriter writer = new StringWriter();

      // Writing a single character using its Unicode value
      writer.write(72);  // 'H' in Unicode
      writer.write(101); // 'e'
      writer.write(108); // 'l'
      writer.write(108); // 'l'
      writer.write(111); // 'o'

      String result = writer.toString();
      System.out.println(result);  // Output: Hello
   }
}

Output

Let us compile and run the above program, this will produce the following result−

Hello

Explanation

• A StringWriter is created.

• write(int c) is called multiple times with Unicode values −

  • 72 → H

  • 101 → e

  • 108 → l

  • 108 → l

  • 111 → o

• toString() converts the buffer into "Hello".

Example - Writing Special Characters & Newlines

The following example shows the usage of StringWriter write(int c) method.

StringWriterDemo.java

package com.tutorialspoint;

import java.io.StringWriter;

public class StringWriterDemo {
   public static void main(String[] args) {
      StringWriter writer = new StringWriter();

      // Writing special characters
      writer.write(65);      // 'A'
      writer.write(10);     // '\n' (newline)
      writer.write(33);      // '!'

      String result = writer.toString();
      System.out.println(result);
   }
}

Output

Let us compile and run the above program, this will produce the following result−

A 
! 

Explanation

• write(int c) is called multiple times with Unicode values−

  • 65 → 'A'

  • 10 → '\n' (newline character)

  • 33 → '!'

• The final string is printed with a newline and special characters.