1. Implement type checking for the Java programming constructs that were introduced in j as part of Project 3 (Parsing).
2. Implement JVM code generation for those Java programming constructs.

To compile the j compiler, run the following command:

$ ant clean compile jar

To compile a j program P.java, run the following command:

$ $j/j/bin/j P.java

Run the following command to run the j program P.class:

$ java P

Problem 1. (Long and Double Basic Types) Add support for long and double basic types.

$ $j/j/bin/j BasicTypes.java

$ java BasicTypes 1.0 42

3.14159

145236

Problem 2. (Operators) Add support for the following operators.

Problem 3. (Conditional Expression) Add support for conditional expression (e1 ? e2 : e3).

Problem 4. (Switch Statement) Add support for a switch statement. Heres some code you may want to use to decide which instruction (TABLESWITCH or LOOKUPSWITCH) to emit:

Where hi is the highest case label value, lo is the lowest case label value, and nlabels are the total real case labels in the switch statement. For example, in the following code, 1, 3, and 5 are the real labels, whereas 2 and 4 are the fake labels to be generated.

Problem 5. (Do-while Statement) Add support for a do-while statement.

$ $j/j/bin/j DoWhileStatement.java

$ java DoWhileStatement

55

Problem 6. (For Statement) Add support for a for statement.

$ $j/j/bin/j ForStatement.java

$ java ForStatement

55

Problem 7. (Exception Handlers) Add support for exception handling, which involves supporting the try, catch, finally, throw, and throws clauses.

$ $j/j/bin/j ExceptionHandlers.java

$ java ExceptionHandlers 42

42: The answer to life, the universe and everything! Done!

$ java ExceptionHandlers 43

43

Done!

Problem 8. (Interface Type Declaration) Implement support for interface declaration.

$ $j/j/bin/j Interface.java

$ java Interface 5

25