# Conditional Statements

### If/else statements

In Java, you can use if/else statements to control the flow of your program based on certain conditions. Here's an example:

```java
public class IfElseExample {
    public static void main(String[] args) {
        int age = 25;

        if (age >= 18) {
            System.out.println("You are an adult.");
        } else {
            System.out.println("You are a minor.");
        }
    }
}
```

In the above example, we use an if/else statement to check if the `age` variable is greater than or equal to 18. If it is, we display the message "You are an adult." If it's not, we display the message "You are a minor."

You can also use if statements without an else statement, like this:

```java
public class IfExample {
    public static void main(String[] args) {
        int age = 25;

        if (age >= 18) {
            System.out.println("You are an adult.");
        }

        System.out.println("Program complete.");
    }
}
```

In the above example, we use an if statement to check if the `age` variable is greater than or equal to 18. If it is, we display the message "You are an adult." Regardless of the result, we then display the message "Program complete."

### Switch statements

In Java, you can use switch statements to simplify complex if/else statements. Here's an example:

```java
public class SwitchExample {
    public static void main(String[] args) {
        int dayOfWeek = 2;

        switch (dayOfWeek) {
            case 1:
                System.out.println("Monday");
                break;
            case 2:
                System.out.println("Tuesday");
                break;
            case 3:
                System.out.println("Wednesday");
                break;
            case 4:
                System.out.println("Thursday");
                break;
            case 5:
                System.out.println("Friday");
                break;
            default:
                System.out.println("Weekend");
                break;
        }
    }
}
```

In the above example, we use a switch statement to check the value of the `dayOfWeek` variable. Depending on its value, we display the corresponding day of the week. The `default` case is used when none of the other cases match. The `break` statement is used to exit the switch statement and continue with the rest of the program.


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