Is my Java code ok?

[Lesafian]

Hi, I'm head programmer of Team 6077 (rookie team). I was wondering if one of you could be kind enough to look through my code (Java) to make sure it follows the rules, and theoretically works.

package org.usfirst.frc.team6077.robot;

import edu.wpi.first.wpilibj.SampleRobot;
import edu.wpi.first.wpilibj.Solenoid;
import edu.wpi.first.wpilibj.TalonSRX;
import edu.wpi.first.wpilibj.Victor;
import edu.wpi.first.wpilibj.command.Scheduler;
import edu.wpi.first.wpilibj.RobotDrive;
import edu.wpi.first.wpilibj.Compressor;
import edu.wpi.first.wpilibj.DoubleSolenoid;
import edu.wpi.first.wpilibj.Joystick;
import edu.wpi.first.wpilibj.smartdashboard.SendableChooser;
import edu.wpi.first.wpilibj.smartdashboard.SmartDashboard;

public class Robot extends SampleRobot {

        // RobotDrive Declaration
	RobotDrive drive;

	// Compressor Declaration
	Compressor compressor;

	// Solenoid Declaration
	DoubleSolenoid doublesolenoid;
	Solenoid solenoid;

	// Joystick Declaration
	Joystick xboxController;

	// Motor Controller Declaration
	TalonSRX armMotor;
	TalonSRX slideMotor;
	Victor drivemotor1;
	Victor drivemotor2;

	// Autonomous Choices
	final String defaultAuto = "Default";
	final String customAuto = "Autonomous Choice 1";
	final String customAuto2 = "Autonomous Choice 2";
	final String customAuto3 = "Autonomous Choice 3";
	final String customAuto4 = "Autonomous Choice 4";
	final String customAuto5 = "Autonomous Choice 5";

	// Chooser
	SendableChooser chooser;

	public Robot() {
		drivemotor1 = new Victor(0);
		drivemotor2 = new Victor(2);
		
		compressor = new Compressor(0);
		
		drive = new RobotDrive(0, 2);
		drive.setExpiration(0.1);
		
		xboxController = new Joystick(0);

		armMotor = new TalonSRX(5);
		slideMotor = new TalonSRX(6);

		doublesolenoid = new DoubleSolenoid(0, 1);
		solenoid = new Solenoid(2);

		chooser = new SendableChooser();

	}

	public void robotInit() {
		compressor.setClosedLoopControl(true);
		chooser.addDefault("Default Auto", defaultAuto);
		chooser.addObject("Autonomous Choice 1", customAuto);
		chooser.addObject("Autonomous Choice 2", customAuto2);
		chooser.addObject("Autonomous Choice 3", customAuto3);
		chooser.addObject("Autonomous Choice 4", customAuto4);
		chooser.addObject("Autonomous Choice 5", customAuto5);
		SmartDashboard.putData("Autonomous Chooser", chooser);
	}

	public void autonomous() {
		drive.setSafetyEnabled(false);
		String autoSelected = (String) chooser.getSelected();
		System.out.println("Autonomous Mode selected: " + autoSelected);

		switch (autoSelected) {

		case customAuto5:
			break;
		case customAuto4:
			break;
		case customAuto3:
			break;
		case customAuto2:
			break;
		case customAuto:
			break;
		case defaultAuto:
		default:
			break;
		}
		Scheduler.getInstance().run();
	}

	public void operatorControl() {
		drive.setSafetyEnabled(true);
		while (isOperatorControl() && isEnabled()) {

			// Move robot using left and right joystick
			drive.tankDrive(xboxController.getRawAxis(1), xboxController.getRawAxis(5));

			// Lift and lower the arms using the right and left bumper.

			if (xboxController.getRawButton(5)) {
				armMotor.set(1);

			} else if (xboxController.getRawButton(4)) {
				armMotor.set(-1);
			}
			else {
				armMotor.set(0);
			}

			// Move sliding mechanism forwards and backwards
			
			if (Math.abs(xboxController.getRawAxis(5)) > .1) {
				slideMotor.set(1);

			} else if (Math.abs(xboxController.getRawAxis(5)) < -.1) {
				slideMotor.set(-1);
			}
			else {
				slideMotor.set(0);
			}

			// Open and close the claw
			

			if (xboxController.getRawButton(2)) {
				doublesolenoid.set(DoubleSolenoid.Value.kForward);
			}
			else if (xboxController.getRawButton(1)) {
				doublesolenoid.set(DoubleSolenoid.Value.kReverse);
			}
			else {
				doublesolenoid.set(DoubleSolenoid.Value.kOff);
			}

		}
	}

	public void test() {
	}
}

Thanks in advance!