C# List<T> in Java

Java noob here, coming from a C# background and having a couple of issues trying to re-write something in Java.

In C# I'd have something like this:

Main class:

System.IO.FileStream cityInput = System.IO.File.Open(this.path, System.IO.FileMode.Open);

System.IO.BinaryReader cityBr = new System.IO.BinaryReader(cityInput);

long CityList = 10;

this.Cities = new System.Collections.Generic.List();

int c = 0;

while (c < CityList)

{

Cities item = new Cities(cityBr);

this.Cities.Add(item);

c++;

}

cityBr.Close();

And then my Cities Class:

namespace myObjects

{

public class Cities

{

public byte cityAttraction;

public short cityID;

public Cities()

{

}

public Cities(System.IO.BinaryReader reader)

{

this.cityAttraction = reader.ReadByte();

this.cityID = reader.ReadInt16();

}

I have been able to write my own binaryreader class in java based on some code i found in github.

My issue that I cannot work out is how to create a generic list collection based on a class in java.

Any help/direction/example would be great.

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Vulpes12y ago
Well, in Java, List is actually an interface.

The actual class, which implements that interface, is ArrayList and you can use its add() method to add items to it:

long CityList = 10;
this.Cities = new java.util.ArrayList();
int c = 0;
while (c < CityList)
{
Cities item = new Cities(cityBr);
this.Cities.add(item);
c++;
}

0