import java.math.BigDecimal; public class test { public static void main(String[] args) {
BigDecimal one, ans; ans = one = BigDecimal.ONE; for (int i = 0; i < 1000; i++) {
ans = one.add(ans); ans = one.divide(ans, 200, BigDecimal.ROUND_HALF_UP);
System.out.println(ans); } System.out.println(ans.setScale(100, BigDecimal.ROUND_HALF_UP));
} }
bigdecimal.round_half_up