String

Learn text variables with String.

What is String?

String is a reference type that holds text. It is written inside double quotes:

String name = "Alex";
String city = "London";

String is a reference type: the variable holds the memory location, not the value itself. So we compare with equals rather than ==.

Strings are immutable: concatenation or trimming produces a new String, leaving the original untouched.

Primitive types (int, boolean) hold the value itself. String is a reference type: the variable holds the memory location of the object.

That is why comparing two Strings with == may give wrong results. The right way is the equals method:

String a = "Hello";
String b = "Hello";
System.out.println(a.equals(b)); // true

This topic is covered in more depth later.

Write a Main class with a main method. Assign "Alex" to String name. Print it with println.

Show example solution

public class Main {
    public static void main(String[] args) {
        String name = "Alex";
        System.out.println(name);
    }
}