Qbasic programs solutions(part 8) for class 8, class 9 and class 10

CLS 
INPUT "ENTER ANY NUMBER"; N 
S = SQR(N) 
IF S = INT(S) THEN 
PRINT "PERFECT SQUARE" 
ELSE 
PRINT "NOT PERFECT SQUARE" 
END IF 
END 

REM PROGRAM TO CALCULATE NET SALES 
CLS 
INPUT “ENTER SALES AMOUNT”; A 
INPUT “ENTER COMMISSION RATE”; R 
C = R / 100 * A 
NS = A - C 
PRINT “NET SALES=”; NS 
END 

CLS 
FOR I = 1 TO 100 STEP 2 
PRINT I, 
S = S + I 
NEXT I 
PRINT “SUM OF ALL ODD NUMBERS FROM 1 TO 100=”; S 
END 

CLS 
INPUT "ENTER FIRST STRING"; A$ 
INPUT "ENTER SECOND STRING"; B$ 
INPUT "ENTER THIRD STRING"; C$ 
IF LEN(A$) > LEN(B$) AND LEN(A$) > LEN(C$) THEN 
G$ = A$ 
IF LEN(B$) > LEN(A$) AND LEN(B$) > LEN(C$) THEN 
G$ = B$ 
ELSE 
G$ = C$ 
END IF 
PRINT "LONGEST STRING="; G$ 
END 

CLS 
FOR I = 2 TO 100 STEP 2 
PRINT I, 
NEXT I 
END 

CLS 
INPUT "ENTER ANY STRING"; S$ 
VC = 0 
CC = 0 
WC = 1 
SC = 0 
FOR I = 1 TO LEN(S$) 
B$ = MID$(S$, I, 1) 
C$ = UCASE$(B$) 
IF C$ = "A" OR C$ = "E" OR C$ = "I" OR C$ = "O" OR C$ = "U" THEN 
VC = VC + 1 
ELSEIF B$ = " " THEN 
WC = WC + 1 
ELSEIF B$ = "." THEN 
SC = SC + 1 
ELSE 
CC = CC + 1 
END IF 
NEXT I 
PRINT "TOTAL NO. OF VOWELS= "; VC 
PRINT "TOTAL NO. OF CONSONANTS="; CC 
PRINT "TOTAL NO. OF WORDS="; WC 
PRINT "TOTAL NO. OF SENTENCES="; SC 
END 

CLS 
A = 11 
B = 3 
FOR I = 1 TO 18 
PRINT A; 
C = A + B 
A = B 
B = C 
NEXT I 
END

REM PROGRAM TO DISPLAY SUM OF CUBE OF ANY THREE INPUT NUMBERS 
CLS 
INPUT “ENTER FIRST NUMBER”; A 
INPUT “ENTER SECOND NUMBER”; B 
INPUT “ENTER THIRD NUMBER”; C 
S = A ^ 3 + B ^ 3 + C ^ 3 
PRINT “SUM OF CUBE OF THREE NUMBERS ”; S 
END 


CLS 
DIM N(10) 
FOR I = 1 TO 10 
INPUT "ENTER THE NUMBERS"; N(I) 
NEXT I 
FOR I = 1 TO 10 
FOR J = 1 TO 10 - I 
IF N(J) > N(J + 1) THEN SWAP N(J), N(J + 1) 
NEXT J 
NEXT I 
PRINT "NUMBERS ARRANGED IN ASCENDING ORDER" 
FOR I = 1 TO 10 
PRINT N(I) 
NEXT I 
END 


CLS 
INPUT "ENTER ANY NUMBER"; N 
C = 0 
FOR I = 1 TO N 
IF N MOD I = 0 THEN C = C + 1 
NEXT I 
IF C <> 2 THEN 
PRINT N; "IS COMPOSITE NUMBER" 
ELSE 
PRINT N; "IS NOT COMPOSITE NUMBER" 
END IF 
END 


CLS 
INPUT "ENTER FIRST STRING"; A$ 
INPUT "ENTER SECOND STRING"; B$ 
INPUT "ENTER THIRD STRING"; C$ 
IF LEN(A$) < LEN(B$) AND LEN(A$) < LEN(C$) THEN 
S$ = A$ 
IF LEN(B$) < LEN(A$) AND LEN(B$)< LEN(C$) THEN 
S$ = B$ 
ELSE 
S$ = C$ 
END IF 
PRINT "SHORTEST STRING="; S$ 
END 

CLS 
INPUT "ENTER ANY NUMBER"; N 
P = 1 
WHILE N <> 0 
R = N MOD 10 
IF R MOD 2 = 1 THEN P = P * R 
N = N \ 10 
WEND 
PRINT "PRODUCT OF ODD DIGITS"; P 
END 

CLS 
INPUT "ENTER ANY NUMBER"; N 
PRINT "EVEN DIGITS ARE "; 
WHILE N <> 0 
R = N MOD 10 
IF R MOD 2 = 0 THEN PRINT R; 
N = N \ 10 
WEND 
END 

CLS 
INPUT "ENTER ANY NUMBER"; N 
S = 0 
WHILE N < > 0 
R = N MOD 10 
IF R MOD 2 = 0 THEN S = S + R 
N = N \\ 10 
WEND 
PRINT "SUM OF EVEN DIGITS"; S 
END 

CLS 
FOR I = 3 TO 30 
S = S + I 
NEXT I 
PRINT “SUM OF NUMBERS BETWEEN 3 TO 30” ; S 
END 

CLS 
A = 9 
FOR I = 1 TO 10 
PRINT A; 
IF A MOD 2 = 0 THEN 
A = A \ 2 
ELSE 
A = A * 3 + 1 
END IF 
NEXT I 
END  

CLS 
A = 10 
B = 2 
FOR I = 1 TO 14 
PRINT A 
A = A + B 
B = B + 1 
NEXT I 
END 

CLS 
INPUT "ENTER ANY STRING"; S$ 
A$ = LEFT$(S$, 1) 
B = ASC(A$) 
IF B >= 48 AND B <= 57 THEN 
CK$ = "FIRST CHARACTER IS A NUMBER" 
ELSEIF B >= 65 AND B <= 90 OR B >= 97 AND B <= 122 THEN 
CK$ = "FIRST CHARACTER IS ALPHABET" 
ELSE 
CK$ = "FIRST CHARACTER IS SYMBOL" 
END IF 
PRINT CK$ 
END 

CLS 
INPUT "ENTER ANY STRING"; S$ 
FOR I = LEN(S$) TO 1 STEP -1 
B$ = MID$(S$, I, 1) 
W$ = W$ + B$ 
NEXT I 
PRINT "REVERSED STRING IS "; W$ 
END 

CLS 
DIM N(10) 
FOR I = 1 TO 10 
INPUT "ENTER THE NUMBERS"; N(I) 
NEXT I 
FOR I = 1 TO 10 
FOR J = 1 TO 10 - I 
IF N(J)  < N(J + 1) THEN SWAP N(J), N(J + 1) 
NEXT J 
NEXT I 
PRINT "NUMBERS ARRANGED IN DESCENDING ORDER" 
FOR I = 1 TO 10 
PRINT N(I) 
NEXT I