Nested Conditions in Java
Learn Java nested conditions (else if) and range checks by building a smart home weather response system that balances comfort and energy bills.
The project
Let’s revisit the idea of a smart house. Suppose that your house has sensors that monitor the current temperature. A very simple system might only decide between two options: turn on the heater or do nothing. However, that’s not realistic. In the real-world, people don’t just feel cold or not cold. We feel cold, comfortable, or hot. A smart house should be able to adjust itself based on all of these states.
For example, when the house is too cold, the heater should be turned on. When the temperature is just right, no action is needed. When it’s a bit warm, a fan should be turned on. When it’s really hot, the AC should be activated. This is what makes a smart home feel more practical and human-centered.
The programming concept
We already know if and else conditional statements. Suppose that you’re writing a program that decides ticket prices: ...