java中，Formatter是个抽象类，为什么可以直接new出来？

Question

public abstract class Formatter
        extends Object

Answer 1

This can be newnew 的

package java.util;

public final class Formatter
extends Object
implements Closeable, Flushable
{}

这个是不能 new

package java.util.logging;

public abstract class Formatter
extends Object
{}

This cannot be new🎜 rrreee

Answer 2

After implementing the interface, new is the generated anonymous class:
Such as:
new interface(){

....

}