Given:javavar ceo = new HashMap();ceo.

In this code, a HashMap is instantiated using the var keyword:

java

var ceo = new HashMap<>();

The diamond operator <> is used without explicit type arguments. While the diamond operatorallows the compiler to infer types in many cases, when using var, the compiler requires explicit type information to infer the variable's type.

Therefore, the code will not compile because the compiler cannot infer the type of the HashMap when both var and the diamond operator are used without explicit type parameters.

To fix this issue, provide explicit type parameters when creating the HashMap:

java

var ceo = new HashMap();

Alternatively, you can specify the variable type explicitly:

java

Map

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