Convert an IP address stored in an int to its string representation. - Java Network

Java examples for Network:IP Address

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Description

Convert an IP address stored in an int to its string representation.

Demo Code

/**//  ww w  .  j  a v a  2s. co  m
 * Copyright 2009-2011 ?cole de technologie sup?rieure,
 * Communication Research Centre Canada,
 * Inocybe Technologies Inc. and 6837247 CANADA Inc.
 *
 * 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.
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        int address = 2;
        System.out.println(IpToString(address));
    }

    /**
     * Convert an IP address stored in an int to its string representation.
     * @param address
     * @return
     */
    public static String IpToString(int address) {
        StringBuffer sa = new StringBuffer();
        for (int i = 0; i < 4; i++) {
            sa.append(0xff & address >> 24);
            address <<= 8;
            if (i != 4 - 1)
                sa.append('.');
        }
        return sa.toString();
    }
}

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