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Java StringBuffer toString()

Last Updated: October 10, 2022 by Chaitanya Singh | Filed Under: java

Java StringBuffer toString() method returns the string representation of this character sequence. An object of StringBuffer class represents a character sequence. The toString() method converts this sequence into a String.

Syntax of toString() method

String str = sb.toString(); //converts sb to a String str
Here, sb is an object of StringBuffer class

toString() Description

public string toString(): Returns a String representation of the StringBuffer sequence.

toString() Parameters

  • It does not take any parameter.

toString() Return Value

  • It returns a string that is equivalent to the char sequence represented by the object of StringBuffer class.

Example 1: Convert int value to String using toString()

public class JavaExample {
  public static void main(String[] args) {
    StringBuffer sb = new StringBuffer();
    int num  = 15; //int value
    sb.append(num); //append integer to sb
    System.out.println("Give Number: "+num);
    String str = sb.toString(); //convert sb to string
    System.out.println("String equivalent: "+str);
  }
}

Output:

Java StringBuffer toString() Output 1

Example 2: Convert char array to String using toString()

public class JavaExample {
  public static void main(String[] args) {
    StringBuffer sb = new StringBuffer();

    //char array
    char[] ch = {'h','e','l','l','o'};
    //append array to StringBuffer
    sb.append(ch);

    //convert StringBuffer to String
    String str = sb.toString();
    System.out.println("String: "+str);
  }
}

Output:

Java StringBuffer toString() Output 2

Example 3: Append multiple data types and convert it into String

public class JavaExample {
  public static void main(String[] args) {
    StringBuffer sb = new StringBuffer();
    char[] ch = {'t','e','x','t'};//char array
    double num = 123456;//double value
    boolean b = true;//boolean value
    sb.append(ch); //append char array
    sb.append(num); //append double
    sb.append(b); //append boolean

    //convert StringBuffer instance to String
    String str = sb.toString();
    System.out.println("String: "+str);
  }
}

Output:

Java StringBuffer toString() Output 3

Recommended Posts

  • Java StringBuffer getChars()
  • Java StringBuffer indexOf()
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  • Java StringBuffer length()
❮ Java StringBuffer

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Tags: StringBuffer

About the Author

I have 15 years of experience in the IT industry, working with renowned multinational corporations. Additionally, I have dedicated over a decade to teaching, allowing me to refine my skills in delivering information in a simple and easily understandable manner.

– Chaitanya

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