Java Else If Statement

Java else if statement

Created By: chatGPT

In Java, the else if statement is used to specify a new condition if the previous if statement evaluates to false. This allows for multiple conditions to be tested sequentially. The syntax consists of the if statement followed by one or more else if statements and an optional else statement. Here's how it works:

if (condition1) {
    // code block executed if condition1 is true
} else if (condition2) {
    // code block executed if condition2 is true
} else {
    // code block if both condition1 and condition2 are false
}

Let's look at an example where we check a person's age and categorize them as a child, teenager, or adult.

int age = 15;

if (age < 13) {
    System.out.println("Child");
} else if (age >= 13 && age < 20) {
    System.out.println("Teenager");
} else {
    System.out.println("Adult");
}

In this example, if the age is less than 13, it prints Child. If the age is between 13 and 19, it prints Teenager. If neither condition is satisfied, it defaults to printing Adult.

int age = 20;

if (age < 13) {
    System.out.println("Child");
} else if (age >= 13 && age < 20) {
    System.out.println("Teenager");
} else {
    System.out.println("Adult");
}

You can add multiple else if statements to evaluate more conditions. Here is how you might add a condition for a senior citizen category:

int age = 65;

if (age < 13) {
    System.out.println("Child");
} else if (age >= 13 && age < 20) {
    System.out.println("Teenager");
} else if (age >= 60) {
    System.out.println("Senior Citizen");
} else {
    System.out.println("Adult");
}

In this modified example, if the age is 60 or older, it prints Senior Citizen. This demonstrates how flexible the else if construct is for evaluating numerous conditions in your Java programs.

int age = 45;

if (age < 13) {
    System.out.println("Child");
} else if (age >= 13 && age < 20) {
    System.out.println("Teenager");
} else if (age >= 60) {
    System.out.println("Senior Citizen");
} else {
    System.out.println("Adult");
}