Java Methods Design and Implementation

/* This method will add the particular package to the DTHService only if the package is not present in the DTHService and return true. Otherwise return false */

+findChannel(int channelId) throws ChannelNotFoundException:Channel

/* This method will check if the particular channel is present in the existing list of packages in the DTHServices and if found ,then need to return channel details .Otherwise need to throw an exception- ChannelNotFoundException in the below format “The given channel is not found”

+tagChannelToPackage(Package p,Channel c):String

/* This method will add the given channel to the given package only if the totalChannels tagged to that package is less than 5.And hence return “The channel ---- is tagged to the package....”/.
Otherwise display the message like “The channel cannot be tagged ”

+findChannelRating(float rating):ArrayList<Channel>

/* This method will return all the channels whose rating is greater than the given rating and the ownerId is divisble by 2*/

+calculateTotalCost(Package p):double

For the Special Package :->totalCost will be the total cost of the channels tagged to the package-additional rate
For the Normal Package :->totalCost will be the total cost of the channels tagged to the package-discount

Optional Methods

+findMaxChannelCost():double

/*This method will find the maximum cost of the channel present in the DTHServices */

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