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PDF
98
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64001
64101
64201
20
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4
1.
n
4
m
5
++(n*m);
25
21
20
2
2.
C++
!"
#include<stdio.h>
void swap(int a, int b);
main()
{
int m=5, n=3
swap(m, n);
printf("The value of m=%2d n=%2dn",m,n);
}
void swap(int &x, int &y)
{
int temp = y;
y = x;
x = temp;
}
#$%&'(
m = 5 n = 3
m = 3 n = 5
m = 5 n = 5
m = 3 n = 3
3
5
C++
)*+,- ./0 12
3~5
3"
line 1. #include <iostream>
line 2. using std::cout;
line 3. using std::endl;
line 4. class Test
line 5. {
line 6. public:
line 7. Test( int = 0 ); // default constructor
line 8. void what( );
line 9. private:
line 10. int x;
line 11. }; // end class Test
line 12. // constructor
line 13. Test::Test( int value )
line 14. : x( value )
line 15. {
line 16. // empty body
line 17. } // end constructor Test
line 18. void Test::what( )
line 19. {
line 20. cout << " x = " << x++;
line 21. cout << " this->x = " << this->x;
line 22. cout << " (*this).x = " << ( *this ).x << endl;
line 23. } // end function what
3
3.
456789:
Test a;
Test a(10);
Test a=10;
Test a( );
2
4.
; !
private
x
5
<
what( )
-$%&'(
x=5 this->=5 (*this).x=5
x=5 this->=6 (*this).x=6
x=6 this->=5 (*this).x=5
x=5 this->=6 (*this).x=5
4
5.
:
private
x
=>?
Class Test
@AB
what( )
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x( value )
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6.
OP&"
void what(int *a, int b)
{
*a = b;
}
int main(void)
{
int x[]={10, 12, 5, 8, 2, 15, 14};
int i;
what(&x[0], 5);
what(&x[2], x[5]);
what(&x[5], x[2]);
for(i=0; i<7; i++)
printf("x[%d]=%3dn", i, x[i]);
return(0);
}
10 12 5 8 2 15 14
5 12 15 8 2 15 14
5 12 5 8 2 2 14
5 12 5 8 2 15 14
4
7.
F!Q78
mystery(4, 6)
<1R$CST
int mystery( int a, int b )
{ if ( b == 1 )
return a;
else
return a + mystery( a, b - 1 );
}
4
6
12
24
1
8.
java
U+,VWHI"
int[][] scores = {{54, 68},{67, 78}, {89, 93}};
:
scores[1][2]
93
scores[1][1]
78
VCJ
3 x 2
XYV
scores[1][0]
67
1
9.
!
speed
C
75
if
fee
$ZH[J
?
if (speed > 35)
fee = 20.0;
else if (speed > 50)
fee = 40.0;
else if (speed > 75)
fee = 60.0;
20.0
40.0
60.0
2
10.
java
-$]&'(
public class Exam15
{
public static void main(String[] args)
{
int count = 0; //
^_
float len = 100.0f;
do
{ count++;
len /= 2.0;
} while ( len > 20.0 );
System.out.println("
`a _
: " + count);
System.out.println("
bcd
: " + len);
}
}
`a _
: 2
`a _
: 3
bcd
: 25
bcd
: 12.5
`a _
: 0
efg
bcd
: 100
2
11.
hi
java
$%&'(
public class Exam18
{
public static void main(String[] args)
{
int i;
int total = 0;
for ( i = 1; i <= 10; i++ )
{ if ( (i % 2) != 0 ) continue;
total += i;
}
System.out.println("
j k
: " + total);
}
}
j k
: 55
j k
: 30
j k
: 25
efg
2
12.
l
F/B-C+D*E-A*C
m n
(postfix)
-*AC+*DE-C/FB
FB/C-DE*+AC*-
F/B-C+D*E-A*C
FB/D-CE*+AE*-
4
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tu
pq5
(Data structure)
pq
(Data manipulation)
ivwNxy
(Integrity constraints)
pqz{
(Data concepts)
2
14.
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(tuples)
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(attributes)
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(atomic value)
o
(tuples)
3
15.
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(primary key)
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Q
(uniqueness)
QpqC
QC
(non-null)
4
16.
:
SQL
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(DDL)
SELECT-FROM-WHERE
UPDATE a relation
INSERT INTO a relation
CREATE TABLE
2
17.
J
SQL
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CREATE TABLE
CREATE ASSERTION
DEFINE TRIGGER
CREATE INDEX
3
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Java Applet
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JavaScript
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