$7\mathrm{.}20$ zyLab Warm$-$up: Format checking$/$ordering Strings $($product codes$)$ JAVA

BETA feature to see your program run with interleaved input and output while in Develop Mode $($unless you leave the input box empty$)$ is turned ON for this lab $.$ Remember to click in the running program window before typing any interactive inputs.

Testing in Submit Mode will remain the same as it was before $($input and output will NOT be interleaved$).$

Start with the supplied code template, editing the top of program comment to include your FULL NAME.

Program description:

This program will evaluate new product code in relation to $2$ other existing product codes.

Each product code should be formatted as: XX$99$

$($First two characters must be letters and the second two characters must be digits$)$

Two product code values are constants in the template, and are already known to be in alphabetical order.

$($i$.$e$.$ the first product code comes alphabetically before the second product code$)$

The user will input a third product code.

This program will check the length and format of the third product code

and when valid, will also order it within the other two codes.

HINT: Use of boolean variables will make implementing this program easier.

$(1)$

Read the user entered product code into a String variable, uppercasing it before storing it in the variable.

Then check its length, using the constant defined in the template code.

When the length is not correct, and is only off by $1$:

Issue one of the error messages shown below:

Length error! One character too short $-$ adding digit $0$ to end

Length error! One character too long $-$ shortening it by one

and modify the product code. Then display the modified value.

When the length is not correct, but is only off by more than $1,$ display:

Length error! Incorrect code length of CODE is not fixable

If the input is:

AB$888$

the output is:

Length error! One character too long $-$ shortening it by one

Corrected product code is now AB$88$

If the input is:

XYZZ$888$

the output is:

Length error! Incorrect code length of XYZZ$888$ is not fixable

$(2)$

When the product code length is now correct, check the product code formats.

Issue error message$($s$)$ like those shown below for any errors found:

Format error! First $2$ characters in code are not letters

Format error! Last $2$ characters in code are not digits

If the input is:

FGH$22$

the output is:

Length error! One character too long $-$ shortening it by one

Corrected product code is now FGH$2$

Format error! Last $2$ characters in code are not digits

WARNING: If you earn points for tests $3$ & $4,$ but your program has errors that cause it to crash

$($i$.$e$.$ throw an Exception$),$ then the points will not count.

$(3)$

When the length and format are both correct:

Use String methods to determine the alphabetical order of the three product codes,

and display them in alphabetical order, one per line.

Reminder: Relational operators cannot be used to compare Strings!

Otherwise:

Display: Cannot order invalid code

If the input is:

GN$3$

the output is:

Length error! One character too short $-$ adding digit $0$ to end

Corrected product code is now GN$30$

Ordered product codes:

GK$93$

GN$30$

SA$14$

If the input is:

WB$82$

the output is:

Ordered product codes:

GK$93$

SA$14$

WB$82$

If the input is:

D

the output is:

Length error! Incorrect code length of D is not fixable

Cannot order invalid code