Java If-else Statement
The Java if statement is used to test the condition. It checks boolean condition: true or false. There are various types of if statement in Java.
- if statement
- if-else statement
- if-else-if ladder
- nested if statement
Java if Statement
The Java if statement tests the condition. It executes the if block if condition is true.
Syntax:
Example:
Output:
Age is greater than 18
Java if-else Statement
The Java if-else statement also tests the condition. It executes the if block if condition is true otherwise else block is executed.
Syntax:
Example:
Output:
odd number
Leap Year Example:
A year is leap, if it is divisible by 4 and 400. But, not by 100.
Output:
LEAP YEAR
Using Ternary Operator
We can also use ternary operator (? 🙂 to perform the task of if…else statement. It is a shorthand way to check the condition. If the condition is true, the result of ? is returned. But, if the condition is false, the result of : is returned.
Example:
Output:
odd number
Java if-else-if ladder Statement
The if-else-if ladder statement executes one condition from multiple statements.
Syntax:
Example:
Output:
C grade
Program to check POSITIVE, NEGATIVE or ZERO:
Output:
NEGATIVE
Java Nested if statement
The nested if statement represents the if block within another if block. Here, the inner if block condition executes only when outer if block condition is true.
Syntax:
Example:
Output:
You are eligible to donate blood
Example 2:
Output:
You are not eligible to donate blood