Permits assignment to occur conditionally within a `a?.b` or `a?[b]` expression. // M() is only executed if 'a' is non-null. // note: the value of 'a.b' doesn't affect whether things are evaluated ...

Understand the syntax and structure of for loops, while loops, and do-while loops. Use loops to iterate over a range of values and perform repetitive tasks based on a condition. Perform basic ...

To practice creating a structured program to solve a problem. To write methods that use parameters. To write an interactive program. To practice writing programs that use conditional execution. For ...