import java.time.OffsetDateTime;
import java.time.ZoneOffset;
import java.time.format.DateTimeFormatter;
import java.util.Locale;
 
public class Main {
	public static void main(String[] args) {
		String strDateTime = "Fri 20 Apr 2018 19:56:52 GMT";
		DateTimeFormatter dtfInput = DateTimeFormatter.ofPattern("EEE d MMM u H:m:s O", Locale.ENGLISH);
		OffsetDateTime odtGmt = OffsetDateTime.parse(strDateTime, dtfInput);
		OffsetDateTime odtOffsetTwoHrs = odtGmt.withOffsetSameInstant(ZoneOffset.of("+02:00"));
		System.out.println(odtOffsetTwoHrs);
 
		// Output in a custom format
		DateTimeFormatter dtfOutput = DateTimeFormatter.ofPattern("EEE d MMM u H:m:sXXX", Locale.ENGLISH);
		System.out.println(odtOffsetTwoHrs.format(dtfOutput));
	}
}

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