How To highlight imageview using button click event in android

I m new to android Development

i have to place 3 button on screen and below that 3 image will be place below that..when i click on any button ,particular image should be highlig开发者_高级运维ht. can anyone tell me how to start..i only want suggestion from where to start...

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You can replace the image with a highlighted variation in the on click event.