Convert Char to String And String to Char in Java

In your Java program you may have a requirement to convert a char to String or to convert a String to char. This post shows different options to do these conversions.

Convert char to String in Java

1. For converting char to String in Java there is a toString() method in the Character class.
If there is a Character class object then you can call toString() method on that object.
There is another static toString(char c) method which returns a String representation of the passed char.

public class CharStrConversion {
  public static void main(String[] args) {
    char ch = 'a';
    String str = Character.toString(ch);
    System.out.println("Converted String - " + str);
  }
}

Output

Converted String – a

2. Another option for converting char to String in Java is to use String.valueOf(char c) method that returns the string representation of the char argument.

public class CharStrConversion {
  public static void main(String[] args) {
    char ch = 'a';
    String str = String.valueOf(ch);
    System.out.println("Converted String - " + str);
  }
}

Output

Converted String – a

Convert String to char in Java

For converting String to char in Java you can use one of the following methods of the String class.

charAt(int index)– Returns the char value at the specified index.
toCharArray()– Converts this string to a new character array. Then from that array you can get the required char using the index.

public class StrCharConversion {
  public static void main(String[] args) {
    String str = "Hello";
    // to get the 5th char (index starts from 0)
    char ch = str.charAt(4);
    System.out.println("Character is- " + ch);
    // Using toCharArray
    char[] charArr = str.toCharArray();
    ch = charArr[1];
    System.out.println("Character is- " + ch);
  }
}

Output

Character is- o
Character is- e

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