How to concatenate foreach loop with **switch-case**

I have a array with a few string values, and I correctly can out it in console:

for element in "${answers[@]}"
do echo $element
done

out:

1

2

5

But I need do some command for each value in array:

For example this implementation does not execute any action:

for element in "${answers[@]}";
do 

#    switch $element {
    case $element in
       1)
        echo "install app 1";;
       2)
        echo "install app 2";;
       3)
        echo "install app 3 ";;
esac 
done

In follow attempt:

for element in "${answers[@]}";
do

    switch $element {
    case "1": echo "install app 1";;
    case "2": echo "install app 2";;
    case "3": echo "install app 3";;
}
done

I have exception:

./prepare_2.0.sh: line 15: syntax error near unexpected token echo' ./prepare_2.0.sh: line 15: case "1": echo "install app 1";;'

How to correctly implement this logic?