Java
branching statement
o ( if )
statement (if-else) statement and
(else – if ) statement
Q.1] What is a
Statement?
·
If the statement is a conditional selection statement that is used to execute the program
through two different paths.
§
Syntax:-
if ( condition) –condition must
return a Boolean value
{
//all statement is executed if the condition is true
}
else {
//statement is executed if condition false.
}
o, mean the condition is all time a Boolean value return if true condition then statements 1 execute and false condition statement2 execute.
o
Or
condition a no { string, char, int, float, long, double value } do not declare
.and no logical value declare.
Q.3 ] write an if-else statement using the program?
Example:- class Example {
public static void main(String args[])
{
int a=10;
if (a>5)
{
System.out.println(“
the value of grater than 5”)
}
else
{
System.out.println(“
the value of less than 5”)
}
}
}
o Now we know that if block a condition true then if block all statement are print. and if the condition are false then else block all statements are executed.
·
Using
block in if conditions:-
1.
If we are adding multiple statements after
if and else statement then we must warp our code inside a block
2.
By using blocks our program looks readable as well as in a proper format.
3.
If we are using blocks then we can add multiple statements after the
conditional if and else statement but we
are not using the blocks we cannot add a declarative statement after the
conditional statement if and else.
Q.4] write a java
program which well check a number is prime or not?
Example class PrimeNumber {
Public static void main(String args[]) {
Int x=10;
if (x% 2 == 0) {
System.out.println(“ the value of prime
:-” +x)
}
else {
System.out.println(“ the value not prime
:-” +x)
}
}
}
0 Comments