21. Using the virtual machine instructions given in Section 3.5.1.1, give an operational semantic definition of the following: a. Java do-while b. Ada for c. C++ if-then-else d. C for e. C switch

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A: Here is the flowchart the of above code. See below step for flowchart.

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Structured English

Structured English uses a simple English language to make structured programming easier for non-professionals. The program is divided into various parts that are known as logical statements. These statements are written in a simple English language.