Page 279 - CA_Blue( J )_Class9
P. 279
Program 2 Write a program to swap two numbers.
1 class swap //Class Name
2 {
3 public static void main()
4 {
5 int a,b,temp; //Variable Declaration
6 a=5;
7 b=2;
8 System.out.println("Before Swapping : ");
9 System.out.println("a : "+ a + " b : " + b); //Displaying Original Value
10 temp = a ;
11 a = b;
12 b = temp;
13 System.out.println("After Swapping : ");
14 System.out.println("a : "+ a + " b : " + b); //Displaying Swapped Value
15 } //Close of main()
16 } //Close of class
You will get the following output:
Before Swapping :
a : 5 b : 2
After Swapping :
a : 2 b : 5
VARIABLE DESCRIPTION
NAME DATATYPE DESCRIPTION
st
a int 1 Number
b int 2 Number
nd
temp int Temporary variable to swap number
(ii) Programs based on Input through parameters.
Write a program to input the selling price and cost price and print the profit and profit
Program 3
percentage.
1 class price //Class name
2 {
3 public static void main(double sp, double cp){
4 double p, pp; //Variable
5 p=sp-cp; //Calculation of profit
Internal Assessment 277

