Here you can find the source of toObject(BigInteger x)
static Object toObject(BigInteger x)
//package com.java2s; /*/*from w ww. j a va 2 s . c o m*/ * Copyright 2014 Yuichiro Moriguchi * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.math.BigInteger; public class Main { static final BigInteger MAXINT = BigInteger.valueOf(Integer.MAX_VALUE); static final BigInteger MININT = BigInteger.valueOf(Integer.MIN_VALUE); static Object toObject(BigInteger x) { if (x.compareTo(MAXINT) > 0 || x.compareTo(MININT) < 0) { return x; } else { return Integer.valueOf(x.intValue()); } } }