packagecom.lyqc.utils;importorg.apache.commons.lang.StringUtils;publicclassValidUtils{privatestaticfinalStringmobile"^(13|15|18|17|16)\09\{9}$";privatestati

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publicclassTest1{publicstaticvoidmain(Stringargs){List<IntegernumbersnewArrayList<(Arrays.asList(1,2,3,4,5,6,7,8,9));

packagecn.sasa.demo4;importjava.util.Arrays;publicclassArrayDemo{publicstaticvoidmain(Stringargs){intarr{2,1,5,7,3,9

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