1, -deprecation
Show a description of each use or override of a deprecated member or class. Without -deprecation, javac shows the names of source files that use or override deprecated members or classes.
Show a description of each use or override of a deprecated member or class. Without -deprecation, javac shows the names of source files that use or override deprecated members or classes.
2.英文的意思很清楚,就是这个方法不被推荐使用,已经被更新版本jdk中的其他方法replace了.不过一般这只是一个warning而已,不会影响程序运行.