Some Java modifiers have equivalent modifiers or attributes in C#. Here there are:

Java keyword	.Net keyword / attrbute
final	sealed
transient	System.NonSerialized
synchronized	MethodImplAttribute(MethodImplOptions.Synchronized)

[Java]

public final class Test
{
    public transient String name;
    public synchronized void Method()
    {
    }
}

[C#]

public sealed class Test
{
    [System.NonSerializedAttribute()]
    public String name;
    
    [System.Runtime.CompilerServices.MethodImplAttribute(System.Runtime.CompilerServices.MethodImplOptions.Synchronized)]
    public void Method()
    {
    }
}