Decompiling Java

Output

Adding these into the CUP specification produces nice-looking results (see Listing 6-39).

Listing 6-39. Decompiler Results

public class MathOps{  public static void main(String[] local0)    {     double local1=0.0;     int local3=12;     local3++;     local3-=4;     local3=local3*5;     local3=local3/3;     local1=(double) local3 + local1;     return;    }}

DoWhile.java and IfTest.java

The next extension of the decompiler allows it to handle conditional statements. Two types of conditional statements do not require the goto opcode by nature—the do-while loop (Listing 6-40) and the if statement (Listing 6-41)—so it is logical to start with them. This small change requires the addition of several new opcodes, the most complicated covered ...