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java130-treemap类
public class Department { private String code;//部门编号 private String name;//部门名字 private int quanity;//部门人员数量 public void setCode(String code) { this.code = code; } public String getCode() {java130-treemap类
public class Department { private String code;//部门编号 private String name;//部门名字 private int quanity;//部门人员数量 public void setCode(String code) { this.code = code; } public String getCode() {