importjava.util.*;publicclassTest{publicstaticvoidmain(String[]args){test();}privatestaticvoidtest(){Stringstr1=”welcometoZhuhai”;Stringstr2=”comehere”;List<String>list=newArrayList<String>();for(inti=0;i<str1.trim().length();i++){if(str1.charAt(i)==32)continue;for(intj=0;j<str2.trim().length();j++){if(str1.charAt(i)==str2.charAt(j)&&!isExist(list,str1.substring(i,i+1)))list.add(str1.substring(i,i+1));}}display(list);}privatestaticbooleanisExist(List<String>list,Stringdest){for(Strings:list){if(dest.equals(s))returntrue;}returnfalse;}privatestaticvoiddisplay(List<String>list){for(Strings:list){System.out.println(s);}}}
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