public class stringdemo {
public static void main(string[] args) {
string s="aa";
char[] chs={'a','a'};
test(s,chs);
system.out.println(s);//aa
system.out.println(chs);//sa
}
public static void test(string str,char[] chs){
str="bc";
chs[0]='s';
chs=str.tochararray();
}
}
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