Java的打印API主要存在于java.awt.print包中。而jdk1.4新增的类则主要存在于javax.print包及其相应的子包javax.print.event和javax.print.attribute中。其中javax.print包中主要包含打印服务的相关类-Java printing API mainly in java.awt.print package. The jdk1.4 new class is mainly present in the javax.print package and the corresponding sub-package javax.print.event and javax.print.attribute in. One of the main javax.print package contains classes related to printing services, and print the event javax.print.event contains relevant definitions, javax.print.attribute include printing services, list of available properties and so on.