Q1 Review Quiz 1 Q1
Searching in a 2D array ÊQJEarþl
Complete the given method, search, which
searches for a wanted value in a 10x10 2D
26Lø141822X.5913
ls 2ø ø 5 Lø 15 2ø ø .5
3 9 15 2L 2 8. t4 2ø L
16235L2L91815224
4L22ø311L92Lø18L
LTttøLg3L22LsL423
515øLø2ø5lsø7ø2ø
184!51,122392ø617
6185L7416315214
t972ø821922tø23tL
Enter a value to search: !
array.
The search should be done by rows; ie. start
from first row (ie row 0) , from column 0 to
column 9; then row 1, row 2, .. etc..
If the value is not found, ouþut
otherwise,
@8
...---->
onlyoutput@
m
M
M
First locatÍon:
where it is found, as shown in the sample
rundown.
Lø
7
(row Ø, coJ. 7)
Main. ava
public static void seanch(int
{
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wanted)
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Tricþ * Good
Short * 6ood
Less vorioblø * Good
We focus on:
.
Givíng correct code
(confidence insteod or risksduring coding)
. Eosyto read / debug / modify / reuse
. Leost trops when chonge / reuse in the future.
Neutrol words like'fiog". "check etc.. o?e bod nomes:
connot tell $rhot théir volu¿s m¿on.
E9. "check==tru¿" tn¿ons OKor Problen??? Don'l knowl!
"found:=lrue" is precise inmeaning. r'r'
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public static void main(String[]
{
angs)
int anrl][];
. . //Set up the 10x10 2D array and its contents [You do not need to do this part]
. . //Display the 2D array [You do not need to do this part]
/ lSeaech
Scanner in = new Scannen(System.in);
System.out.pnint("Enter a value
int x = in.nextlnt0;
Ì
i
in. close
O
j
to search: ");
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Q2 Review Quiz 1 Q2
Enter year and month (eg. "2øt3
Array of Days t20¡arksl
Thene ane 29 days
t2")i
2ø72 2
in the month:
Add required code to complete the given
progftim which lists all days in a month,
as shown in the example:
Note/Hint:
Your solution should involve at least
one method in the Day class.
h'rfu'\äh
29 Feb 2øt2
Main
public static void main(Stning[] args)
{
System,out.print("Enter yean and month (eg. \"2ø13
Scanner scannenobj = ne¡, Scanner(System.Ín);
int
int
ava
12\"): ")
y=sç¿¡¡s¡0bj.nextlntO;
m=scannenObj.nextlntO;
Day[] dArnay;
2 Marks)
-
¿ Awa.tr
System.out. printf("\nThene are %d days
fon (Ínt Í=0;i<dAnray.length;i++)
System.
scannen0bj
.
out. println(dAnnayIi]
close(
)
in the
month
:
\n",dArray.length);
j
);
)
ava
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Q3 Review Quiz 1 Q3
[0.
] mark; (partial mark up to 0.05 may be given for pafüaI correctness / improper style O)]
Rewrite your method for Ql
such that if the wanted value
appears 2 times or more, it
clearly shows the first and last
locations where the wanted
Sample rundown #1 (only one locat¡on)
Enten a value to seanch: L3
Found location: (now Ø, co1 9)
value is found.
Sample rundown #2 (2 locations)
Reminder: lf
valueis not
found, outntlnor r9yg¡D,
þ
Enten a vaLue to seanch: 7
Found locations: (row 2, co1
9) and (now 9, coI 1)
Sample rundown #3 (more than?locations)
Enten a value to seanch: 22
Found locations: (row Ø, col
5)
(now
9,
co1 6)
Main. ava
public static void seanch(int [][] ann, int
wanted)
{
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