Conditional Statement In Java

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Conditional Statements in Java are used to make decisions in a program based on certain conditions. They allow the program to execute different code blocks depending on whether a condition evaluates to true or false. It plays a key role in programming logic by enabling the implementation of decision making statements in Java, where the program can choose between alternative paths of execution based on specific conditions.
It plays a key role in programming logic by enabling the implementation of branching behavior, where the program can choose between alternative paths of execution based on specific conditions.
if Statement:
It evaluates a condition and executes a block of code if the condition is true. This is the most basic form of conditional statement in Java programming.
int x = 10;
if (x > 5) {
 System.out.println("x is greater than 5");
}
if-else Statement:
The if else condition in Java evaluates a condition and executes one block of code if the condition is true and another block if the condition is false.
Example: Check whether x is greater than 5.
int ...
... x = 10;
if (x > 5) {
 System.out.println("x is greater than 5");
} else {
 System.out.println("x is not greater than 5");
}
else-if ladder:
The if and else if in Java ladder allows checking multiple conditions sequentially until one of them evaluates to true. It is useful when there are more than two possible outcomes.
Example: Check whether x is greater than or lesser than or equals to 15.
int x = 10;
if (x > 10) {
 System.out.println("x is greater than 15");
} else if (x < 15) {
 System.out.println("x is less than 15");
} else {
 System.out.println("x is equal to 15");
}
Nested if Statements:
Nested if else in Java allows placing one if statement inside another if statement. It is useful when there is a need to check multiple conditions in a hierarchical manner.
Nested if else example: Check whether x is between the range of 5 to 15 or not.
int x = 10;
if (x > 5) {
 if (x < 15) {
 System.out.println("x is between 5 and 15");
 }
}
Switch Statement:
The java case statement evaluates an expression and executes code blocks based on matching case labels. It provides an alternative to if-else ladder when there are multiple cases to be checked against the same value.
Java switch cases example: Print day name of the weeek after receiveing any number between 1 to 7 otherwise errror message.
int day = 3;
switch (day) {
 case 1:
 System.out.println("Sunday");
 break;
 case 2:
 System.out.println("Monday");
 break;
 case 3:
 System.out.println("Tuesday");
 break;
 default:
 System.out.println("Invalid day");
}
Java Conditional Operator:
The java conditional operator ?: is also known as the ternary operator. It provides a shorthand way to write simple if-else statements.
int x = 10;
int y = 20;
int max = (x > y) ? x : y;
System.out.println("Maximum is: " + max);
This is a great example of how the java if operator can be simplified using ternary logic.
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