How to convert char array to String in Java

In this post, we are going to convert the char array to String in Java. The char array is a collection of characters and an object while String is a sequence of characters and a class in Java.

The string is the most common and mostly used datatype for data handing in Java. So, if we have a char array and need to get it into String then we need to convert the char array to string.

To convert a char array to a string, we are using String class constructor, valueOf(), and copyValueOf() method of String class.

The string class provides a constructor for the char array argument to create a string. We are using it to get String from the char array.

The valueOf() method of String class accept char array argument and return a String as a result. similarly, copyValueOf() method can be used to get a string from char array. both the methods are equal, we can use any of them.

Let's create an example to get a string from a char array. Here, we are using a string's constructor that returns a string from a char array.

public class Main {
    public static void main(String[] args){
        char[] ch = {'a','e','i','o','u'};
        System.out.println(ch);
        // convert char to string
        String str = new String(ch);
        System.out.println(str);
        System.out.println(str.getClass().getName());
    }
}

aeiou aeiou java.lang.String

Let's create another example to get a string from a char array. Here, we are using the valueOf() method that converts a char array to a string object.

public class Main {
    public static void main(String[] args){
        char[] ch = {'a','e','i','o','u'};
        System.out.println(ch);
        // convert char to string
        String str = String.valueOf(ch);
        System.out.println(str);
        System.out.println(str.getClass().getName());
    }
}

aeiou aeiou java.lang.String

Here, we are using copyValueOf() method to get a string from a char array. It is equivalent to the valueOf() method has no significant difference.

public class Main {
    public static void main(String[] args){
        char[] ch = {'a','e','i','o','u'};
        System.out.println(ch);
        // convert char to string
        String str = String.copyValueOf(ch);
        System.out.println(str);
        System.out.println(str.getClass().getName());
    }
}

aeiou aeiou java.lang.String