3. Using the virtual machine instructions given in Section 3.5.11, give an operational semantic definition of the following (Similar to the example shown on Slide 6 of SemanticAnalysis-2.pdf, you can use "if and goto", and declare labels) a. Java d -while do ( while (expr) b. Ada for fr 1 in first.. last 10p end loop; c. C++ if-then-else if (expr) block1 block2 d. C switch else switch (expr) case constl: block1 break case const2: block2 break default: b1 ck3 break; 3. Using the virtual machine instructions given in Section 3.5.11, give an operational semantic definition of the following (Similar to the example shown on Slide 6 of SemanticAnalysis-2.pdf, you can use "if and goto", and declare labels) a. Java d -while do ( while (expr) b. Ada for fr 1 in first.. last 10p end loop; c. C++ if-then-else if (expr) block1 block2 d. C switch else switch (expr) case constl: block1 break case const2: block2 break default: b1 ck3 break