集合合并代码

publicstaticvoidmain(String[]args){//TODOAuto-generatedmethodstubListlst1=newArrayList();Listlst2=newArrayList();UserBeanb1=newUserBean();UserBeanb2=newUserBean();UserBeanb3=newUserBean();UserBeanb4=newUserBean();UserBeanb11=newUserBean();UserBeanb12=newUserBean();UserBean