Hilfe mit Java-Fehler,

Question

All dies wird kompiliert und ausgeführt in bluej, so dass kein Hauptverfahren erforderlich ist, ich habe viele Fehler am recieving und ich bin neu in Java, so dass ich weiß nicht, wie sie zu beheben. Jede Hilfe wäre großartig geschätzt.

Dies hat errors`import java.util. *;

public class LettingAgent {

private ArrayList<Property>myProperty;
private int propertyNo;


public LettingAgent(){
    myProperty = new ArrayList<Property>();
    propertyNo = 0;
}

public void addProperty(String newAddress, char newLocation, int newMonthlyRent, int newNoOfBedrooms){
    Property newProperty = new Property(newAddress, newLocation, newMonthlyRent, newNoOfBedrooms);
    myProperty.add(newProperty);
}


public void removeProperty(int propertyNo){
    if(propertyNo>myProperty.size() || propertyNo<0){
        System.out.println("Invalid Property Number!");

    }else{
        myProperty.remove(propertyNo);
        System.out.println("Property Successfully removed.");            
    }
}


public void addTenant(int propertyNo, String tenantName){ 
    if(propertyNo>myProperty.size() || propertyNo<0){
        System.out.println("Invalid Property Number!");          
    }else{
        myProperty.get(propertyNo);
        //Property.newTenant(tenantName);            
    }
}


public void removeTenant(int propertyNo){
    if( propertyNo<myProperty.size()){
        myProperty.get(propertyNo);
        //Property.removeTenant();
    }else{
        System.out.println("Invalid Property Number!");
    }
}
public void searchProperty(String searchAddress){
    int propertyNumber = 0;     
    for(Property Property : myProperty){
        myProperty.get(propertyNumber);            
        if (myProperty.get(propertyNo).equals(searchAddress)){
            System.out.println("Property Details: "+ Property);
        }
        else{
            System.out.println("No Such Property.");
        }

        if(propertyNumber>myProperty.size()){
            System.out.println("No Such Property.");           
        }else{
            break;
        }           

    }

}
public void propertyList(Char location, int maxRent, int minBedrooms){

    for(Property Property : myProperty){
        if((Property.getLocation().equals(location))&& (Property.get(newMonthlyRent).equals(maxRent))&& (myProperty.get(newNoOfBedrooms).equals(minBedrooms))){
            System.out.println(propertyNo);
            Property.displayDetails();                            
        }else{
            System.out.println("Property Does Not Fit Search Criteria!");
        }        
    }                    
}

}

`

Dies ist die zugehörige Klasse `// Objektklasse public class Eigenschaft { // initialisiert Variablen private String-Adresse; Privat char Lage; private int monthlyRent; private int noOfBedrooms; Private boolean besetzt; private String tenantName;

//constructor, to create a new property
public Property( String newAddress, char newLocation,int newMonthlyRent, int newNoOfBedrooms){ 
    address = newAddress;
    location = newLocation;
    monthlyRent = newMonthlyRent;
    noOfBedrooms = newNoOfBedrooms;
    occupied = false;
    tenantName = "";
}

//method to return the address of created property
public String getAddress(){
    return address;
}
//method to return the location of created property    
public char getLocation(){
    return location;
}
//method to return the rent of created property    
public int getMonthlyRent(){
    return monthlyRent;
}
//method to return the number of bedrooms of created property   
public int getNoOfBedrooms(){
    return noOfBedrooms;
}
//method to return the occupied status of created property    
public boolean getOccupied(){
    return occupied;
}
//method to return the name of the tenant of created property    
public String getTenantName(){
    return tenantName;
}
//method to set a new monthly rent
public void newRentRate(int newMonthlyRent){
    monthlyRent = newMonthlyRent;
}
//method to set a new tenant, but only works if current property is empty
public void newTenant(String newTenant){
    if(occupied){
        System.out.println(" ERROR! Property is already occupied. ");
    }else{
        tenantName = newTenant;
        occupied = true;       
    }

}
//method used to remove tenant and reset the occupied status to false
public void removeTenant(){
    if(occupied){
        tenantName = " ";
        occupied = false;
    }else{
        System.out.println("ERROR! Property is already empty.  ");
    }
}
//method implements a switch statement to switch the char type in to a more understandable string type
// and also then displays the full property details.
public void displayDetails(){
    String fullLocation;
    switch(location){
        case 'n': case 'N': fullLocation = " North London"; break;
        case 's': case 'S': fullLocation = " South London"; break;
        case 'e': case 'E': fullLocation = " East London"; break;
        case 'w': case 'W': fullLocation = " West London"; break;
            default: fullLocation = " unknown";
    }

    System.out.println("Address :" + address);
    System.out.println("Location :" + fullLocation);
    System.out.println("Monthly Rent : " + monthlyRent);
    System.out.println("Number of bedrooms : " + noOfBedrooms);
    System.out.println("Occupied Status : " + occupied);

    if(occupied){
        System.out.println("Tenants Name : " + tenantName);
    }else{
        System.out.println(" ");
    }

}

} `

Answer 1

Die Klasse Property hat keine Methode get() definiert.

Ändern Property.get(newMonthlyRent).equals( zu Property.getMonthlyRent().equals(

Auch scheint es, dass Sie Property mischen eine einzelne Eigenschaft mit dem Arraylist myProperty, die eine Liste aller Eigenschaften halten

Die get() Methode auf dem Arraylist die einzelne Objektinstanz zurückgeben, so in Ihrem addTenant() Verfahren, Verwendung myProperty.get(propertyNo).newTenant(tenantName);

---

UPDATE

Property.getLocation() gibt ein char kein String. Ein char keine equals() Methode hat.

Ändern Property.getLocation().equals(location) zu Property.getLocation() == location