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How Can I Convert a Character to a String in Java?

Susan Sarandon
Release: 2024-10-31 20:11:02
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How Can I Convert a Character to a String in Java?

Converting a Character to a String in Java

In Java, it is often necessary to convert a single character to a string. This conversion can be achieved using various approaches.

Character.toString() Method

The most common method to convert a char to a String is by using the Character.toString() method. This method returns a String object representing the specified character. For example:

<code class="java">char myChar = 'a';
String myString = Character.toString(myChar);  // myString is now "a"</code>
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String.valueOf() Method

Another way to convert a char to a String is by using the String.valueOf() method. This method also returns a String representation of the specified char value. For example:

<code class="java">char myChar = 'b';
String myString = String.valueOf(myChar);  // myString is now "b"</code>
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String Concatenation

As a shortcut, you can also concatenate an empty String with the character using the ' ' operator:

<code class="java">char myChar = 'c';
String myString = "" + myChar;  // myString is now "c"</code>
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While this approach is convenient, it is less efficient than using the Character.toString() or String.valueOf() methods, as it internally creates a new StringBuilder object.

Conclusion

When converting a char to a String in Java, the Character.toString() or String.valueOf() methods are preferred due to their simplicity and efficiency. String concatenation should be considered only as a convenient shortcut for short one-time conversions.

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