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Java 8—23 Maven + Gradle AST & AI Citations
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src/com/rental/Van.java JAVA
1 / 4
1
package com.rental;2
3
public class Van extends Vehicle {4
5
private static final double DRIVER_FEE = 500.0;6
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private int cargoCapacityKg;8
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public Van(String plateNumber, String model, double baseRatePerDay,10
boolean available, int cargoCapacityKg) {11
super(plateNumber, model, baseRatePerDay, available);12
setCargoCapacityKg(cargoCapacityKg);13
}14
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public int getCargoCapacityKg() {16
return cargoCapacityKg;17
}18
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public final void setCargoCapacityKg(int cargoCapacityKg) {20
if (cargoCapacityKg <= 0) {21
throw new IllegalArgumentException("Cargo capacity must be greater than 0.");22
}23
this.cargoCapacityKg = cargoCapacityKg;24
}25
26
@Override27
public double calculateRentalCost(int numberOfDays) {28
return (getBaseRatePerDay() * numberOfDays) + DRIVER_FEE;29
}30
}OOP Concepts:
Click any metric to highlight in codeRepository AI Assistant Clear
How does this GitHub repository implement encapsulation?
Encapsulation is implemented in this repository as follows:
- • Data Hiding: The repository enforces strict internal state protection by declaring sensitive fields as private. This is evident in
Main.scanner,Main.system, andVan.DRIVER_FEE. - • Controlled Accessors: Logic for interacting with object properties is encapsulated through public getter and setter methods to manage state transitions safely:
- • Vehicle: Uses private fields for plateNumber, model, baseRatePerDay, and available, providing access via public methods .
- • Car: The numberOfSeats field is private and managed through public accessors .
- • Motorcycle: The engineDisplacementCc property is encapsulated with specific getter and setter methods .
- • Van: The cargoCapacityKg is encapsulated through public access methods .
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02 / Why CohiBox
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CohiBox eliminates local configuration friction. From automated JDK provisioning to AST-level OOP analysis and verified AI citations, your repository is always ready to run and understand.
AST-powered Code & Citations Inspector
Deep tree-sitter static analysis extracts classes, interfaces, inheritance hierarchies, method overrides, and encapsulation scores with zero manual configuration.
Repository-grounded AI assistant
Ask architectural and implementation questions with 100% factual accuracy, backed by clickable line-level source code citation badges and focus highlights.
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CohiBox Execution Pipeline JDK 21 & AST Engine Architecture
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02 / BUILD & AST
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