[Solved] What is this Java program behaviour? Why does this not give a compile time error of `Incompatible type cannot convert int to string`?

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What is this Java program behaviour? Why does this not give a compile time error of `Incompatible type cannot convert int to string`?

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solved What is this Java program behaviour? Why does this not give a compile time error of `Incompatible type cannot convert int to string`?