Page 179 - Computer science 868 Class 12
P. 179
Let us understand them one by one.
Simple ‘if’ Statement
The simple if statement consists of the if part only, which means it contains only the condition. Depending on a single
condition, the execution of the program is diverted as and when needed. The result of the if statement gives a boolean
value.
Syntax:
if(condition)
{
Statement 1;
Statement 2;
…..
}
For example:
Input the cost of a pen and print the discount of `10/-, to be availed only if the price is more than `50/-.
class onlyif
{
public static void main(double pr)
{
System.out.println("MRP of the pen : " +pr);
if(pr>50)
{
pr -= 10;
}
System.out.println("The cost of the pen is : " +pr);
}
}
Output:
MRP of the pen : 70.0
The cost of the pen is : 60.0
Let us take some more examples:
a. if(max<100)
System.out.println(max + " is less than 100");
b. if(a>99 && a<=999)
System.out.println(a + " contains 3 digits");
if-else Statement
This statement is used whenever we need either of the two actions to be executed. If the condition is satisfied, then
one set of statements under the if part will be executed, and if not satisfied, then the set of statements under the else
part will be executed.
Syntax:
if(condition)
{
Statement 1;
}
else
{
Statement 2;
}
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Statements and Scope 177

