Sealed Class in Java with Examples

Program 1

sealed interface MyInter1 permits MyInter2
{

}

non-sealed interface MyInter2 extends MyInter1
{

}
interface MyInter3 extends MyInter1
{

}

class TestSealed
{
  public static void main(String args[])
{

}
}







// sealed class First permits Second,Third
// {

// }
// sealed class Second extends First permits Four
// {

// }
// non-sealed class Four extends Second
// {}