java中，Formatter是个抽象类，为什么可以直接new出来？

Question

{代码...}

高洛峰 · Answer

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

天蓬老师 · Answer

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

....

}