import java.util.*;
public class
RevString {
public String rev = "";
public String revString(String s) {
if (s.length() == 1) {
return s;
} else {
rev += rev + s.charAt(s.length() - 1)
+ revString(s.substring(0, s.length() -
1));
return rev;
}
}
public static void main(String args[]) {
RevString r = new RevString();
System.out.print(r.revString("JAVA"));
}
}
Output :AVAJ
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