AWS Code Sample

The AWS Documentation website is getting a new look!
Try it now and let us know what you think. Switch to the new look >>

You can return to the original look by selecting English in the language selector above. demonstrates how to allocate an elastic IP address for an EC2 instance.

/* * Copyright 2010-2019, Inc. or its affiliates. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. * A copy of the License is located at * * * * or in the "license" file accompanying this file. This file 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.example.ec2; import; import; import; import; import; import; /** * Allocates an elastic IP address for an EC2 instance */ public class AllocateAddress { public static void main(String[] args) { final String USAGE = "To run this example, supply an instance id\n" + "Ex: AllocateAddress <instance_id>\n"; if (args.length != 1) { System.out.println(USAGE); System.exit(1); } String instance_id = args[0]; Ec2Client ec2 = Ec2Client.create(); AllocateAddressRequest allocate_request = AllocateAddressRequest.builder() .domain(DomainType.VPC) .build(); AllocateAddressResponse allocate_response = ec2.allocateAddress(allocate_request); String allocation_id = allocate_response.allocationId(); AssociateAddressRequest associate_request = AssociateAddressRequest.builder() .instanceId(instance_id) .allocationId(allocation_id) .build(); AssociateAddressResponse associate_response = ec2.associateAddress(associate_request); System.out.printf( "Successfully associated Elastic IP address %s " + "with instance %s", associate_response.associationId(), instance_id); } }

Sample Details

Service: ec2

Author: soo-aws

Type: full-example

On this page: