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Wednesday 24 January 2024
10

How implement Interfaces in Java

In Java, an interface is a collection of abstract methods. To implement an interface, the implements keyword is used.

Below is a basic example of how to implement an interface in Java:

public interface MyInterface {
    void method1();
    int method2(String parameter);
}

public class MyClass implements MyInterface {
    public void method1() {
        // Implementation of method 1
    }

    public int method2(String parameter) {
        // Implementation of method 2
        return parameter.length();
    }
}

In this example, the MyClass class implements the MyInterface interface and provides concrete implementations for the methods defined in the interface.

It's possible to implement multiple interfaces in a single class, providing flexibility in Java's interface-oriented design.

public interface AnotherInterface {
    void anotherMethod();
}

public class MyClass implements MyInterface, AnotherInterface {
    // Implementation of methods from both interfaces
}
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Jorge García

Fullstack developer