Switching javascript neural network to java

Processing Coding Questions
7

main page

NeuralNetwork nn;
void setup(){
  nn = new NeuralNetwork(2,2,1);
  float [] input = new float[2];
  input[0] = 1;
  input[1] = 0;
  float output = nn.feedforward(input);
}

network

class NeuralNetwork{
  float input, hidden, output;
  NeuralNetwork(float input, float hidden, float output){
    this.input = input;
    this.hidden = hidden;
    this.output = output;
    Matrix weightsih = new Matrix(input);
  }
  void feedforward(float input){
    return guess;
  }
}

here where I got so far