1.7 Control Statement || Decesion Making || if & else statement || if else programming.
Control Statement:
To comtrol of flow of execution.
1. Decesion Statement.
if statement: to test the condition its test boolean condition (true or false).
swith statement: to select one of many code block to be executed.
1. If Statement:
-> if(condition) -> expression resulting boolean value.
{
-
- //statement
}
if(condition)
{
-
-
}
else
{
-
-
}
-> if(condition1)
{
-
-
}
else if(condition2)
{
-
-
}
else
{
-
-
}
-> if(condition1)
{
if(condition2)
{
-
-
}
else
{
-
-
}
}
else
{
-
-
}
1. Switch Statement:
-> switch(expression)
{
-
-
}
Example Program1:
class Program1
{
public static void main(String args[])
{
int num = 2;
if(num>7)
{
System.out.println("number is above 7");
}
System.out.println("main method is ended");
}
}
Example Program2:
class Program2
{
public static void main(String args[])
{
int num = 2;
if(num>7)
{
System.out.println("number is above 7");
}
else
{
System.out.println("number is bleow 7");
}
System.out.println("main method is ended");
}
}
Example Program3:
class Program3
{
public static void main(String args[])
{
System.out.println("main method is started");
int num = 7;
if(num>7)
{
System.out.println("number is above 7");
}
else if("num==7");
{
System.out.println("number is equal to 7");
}
else
{
System.out.println("number is below 7");
}
System.out.println("main method is ended");
}
}
Example Program4:
class Program4
{
public static void main(String args[])
{
Syatem.out.println("main method is started");
double availBal = 5000.00;
double amt = 7000.00;
if(amt<availBal)
{
System.out.println("withdraw sucess");
}
else
{
System.out.println("withdraw failed");
}
System.out.println("Account balance is ="+availBal);
System.out.println("main method is ended");
}
}
more details follow video given below:
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