Java Interface Another way to achieve abstraction in Java, is with interfaces. An interface is a completely "abstract class" that is used to group related methods with empty bodies: code example

Example: java interface

public interface Exampleinterface {
	
  public void menthod1();
  
  public int method2();

}

class ExampleInterfaceImpl implements ExampleInterface {


  	public void method1()
    {
        //code here
    }
  
    public int method2()
  	{
    	//code here
  	}

}