重构到设计模式的经典案例，超完美详细（java源码）

[{"title":"（ 22 个子文件 23KB ） 重构到设计模式的经典案例，超完美详细（java源码）","children":[{"title":".project <span style='color:#111;'> 597B </span>","children":null,"spread":false},{"title":"pom.xml <span style='color:#111;'> 7.07KB </span>","children":null,"spread":false},{"title":"checkstyle.xml <span style='color:#111;'> 6.11KB </span>","children":null,"spread":false},{"title":".settings","children":[{"title":"org.eclipse.jdt.core.prefs <span style='color:#111;'> 334B </span>","children":null,"spread":false},{"title":"org.maven.ide.eclipse.prefs <span style='color:#111;'> 271B </span>","children":null,"spread":false}],"spread":true},{"title":"src","children":[{"title":"test","children":[{"title":"resources","children":null,"spread":false},{"title":"java","children":[{"title":"com","children":[{"title":"chinanetcenter","children":[{"title":"example","children":[{"title":"charge","children":[{"title":"version2","children":[{"title":"UserTest.java <span style='color:#111;'> 2.25KB </span>","children":null,"spread":false}],"spread":true},{"title":"version6","children":[{"title":"UserTest.java <span style='color:#111;'> 2.27KB </span>","children":null,"spread":false}],"spread":true},{"title":"version1","children":[{"title":"UserTest.java <span style='color:#111;'> 2.08KB </span>","children":null,"spread":false}],"spread":false},{"title":"version3","children":[{"title":"UserTest.java <span style='color:#111;'> 2.25KB </span>","children":null,"spread":false}],"spread":false},{"title":"version4","children":[{"title":"UserTest.java <span style='color:#111;'> 2.25KB </span>","children":null,"spread":false}],"spread":false},{"title":"version0","children":[{"title":"UserTest.java <span style='color:#111;'> 2.08KB </span>","children":null,"spread":false}],"spread":false},{"title":"version5","children":[{"title":"UserTest.java <span style='color:#111;'> 2.25KB </span>","children":null,"spread":false}],"spread":false}],"spread":true}],"spread":true}],"spread":true}],"spread":true}],"spread":true}],"spread":true},{"title":"main","children":[{"title":"resources","children":null,"spread":false},{"title":"java","children":[{"title":"com","children":[{"title":"chinanetcenter","children":[{"title":"example","children":[{"title":"charge","children":[{"title":"version2","children":[{"title":"User.java <span style='color:#111;'> 2.62KB </span>","children":null,"spread":false}],"spread":true},{"title":"version6","children":[{"title":"User.java <span style='color:#111;'> 4.24KB </span>","children":null,"spread":false}],"spread":false},{"title":"version1","children":[{"title":"User.java <span style='color:#111;'> 2.51KB </span>","children":null,"spread":false}],"spread":false},{"title":"version3","children":[{"title":"User.java <span style='color:#111;'> 3.69KB </span>","children":null,"spread":false}],"spread":false},{"title":"version4","children":[{"title":"User.java <span style='color:#111;'> 3.11KB </span>","children":null,"spread":false}],"spread":false},{"title":"version0","children":[{"title":"User.java <span style='color:#111;'> 3.56KB </span>","children":null,"spread":false}],"spread":false},{"title":"version5","children":[{"title":"User.java <span style='color:#111;'> 3.97KB </span>","children":null,"spread":false}],"spread":false}],"spread":true}],"spread":true}],"spread":true}],"spread":true}],"spread":true}],"spread":true}],"spread":true},{"title":".pmd <span style='color:#111;'> 22.25KB </span>","children":null,"spread":false},{"title":".classpath <span style='color:#111;'> 693B </span>","children":null,"spread":false},{"title":".checkstyle <span style='color:#111;'> 299B </span>","children":null,"spread":false}],"spread":true}]