Doubt in edit and delete methods

[ai_2007]

Are these edit and delete methods correct?

**To delete bus number of any buses*/
public void deleteRecord(String busnum){
for(int i=0; i><buses.size(); i++){
Bus b = (Bus)buses.get(i);

if((b.getBusnum()).compareTo(busnum)==0)
buses.removeElementAt(i);
}
}

/**To edit record in the file*/
public void editRecord(String busnum){

for(int i=0; i><buses.size(); i++){
Bus b = (Bus)buses.get(i);

if((b.getBusnum()).compareTo(busnum)==0){
buses.removeElementAt(i);
}
buses.insertElementAt((Object)i,1);
}
}

[JavaBean]

The first one looks correct.

For the second one: instead of removing and reinserting a bus you should directly call object methods to change its properties!

[ai_2007]

I am not sure of how to do that. But is the below correct?

/**To edit record in the file*/
public void editRecord(String busnum){

for(int i=0; i><buses.size(); i++){
Bus b = (Bus)buses.get(i);

if((b.getBusnum()).compareTo(busnum)==0){
	buses.insertElementAt((Object)i,1);
}
}

[JavaBean]

I mean something like this:

/**To edit record in the file*/
public void editRecord(String busnum){

for(int i=0; i><buses.size(); i++){
Bus b = (Bus)buses.get(i);

if((b.getBusnum()).compareTo(busnum)==0){
	b.setName("New Bus");
}
}

So in this example, i access the name property of a bus and change its name by calling its setName(String name) method. The method you need to call all depends on what you mean by editing!