Checks if two BigInteger arrays contain the same entries - Java java.math

Java examples for java.math:BigInteger

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Description

Checks if two BigInteger arrays contain the same entries

Demo Code


//package com.java2s;
import java.math.BigInteger;

public class Main {
    /**// w  w  w  .j av  a2  s .  c o m
     * Checks if two BigInteger arrays contain the same entries
     * 
     * @param a
     *            first BigInteger array
     * @param b
     *            second BigInteger array
     * @return true or false
     */
    public static boolean equals(BigInteger[] a, BigInteger[] b) {
        int flag = 0;

        if (a.length != b.length) {
            return false;
        }
        for (int i = 0; i < a.length; i++) {
            // avoid branches here!
            // problem: compareTo on BigIntegers is not
            // guaranteed constant-time!
            flag |= a[i].compareTo(b[i]);
        }
        return flag == 0;
    }
}

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