There are four ways that a field can be initialized in Java. These are, in order:
- As part of a static initializer block
- As part of an instance initializer block
- Default value in declaration.
- In the constructor.
| package org.firstinspires.ftc.teamcode.autonomous; | |
| import com.qualcomm.robotcore.eventloop.opmode.Autonomous; | |
| import com.qualcomm.robotcore.eventloop.opmode.LinearOpMode; | |
| import com.qualcomm.robotcore.hardware.DcMotor; | |
| import com.qualcomm.robotcore.hardware.DcMotorSimple; | |
| @Autonomous | |
| public class PrettySimpleAutonomous extends LinearOpMode { |
| package org.firstinspires.ftc.teamcode.autonomous; | |
| import com.qualcomm.robotcore.eventloop.opmode.Autonomous; | |
| import com.qualcomm.robotcore.eventloop.opmode.LinearOpMode; | |
| import com.qualcomm.robotcore.hardware.DcMotor; | |
| import com.qualcomm.robotcore.hardware.DcMotorSimple; | |
| @Autonomous | |
| public class PrettySimpleAutonomous extends LinearOpMode { |
| package org.firstinspires.ftc.teamcode.autonomous; | |
| import com.qualcomm.robotcore.eventloop.opmode.Autonomous; | |
| import com.qualcomm.robotcore.eventloop.opmode.LinearOpMode; | |
| import com.qualcomm.robotcore.hardware.DcMotor; | |
| import com.qualcomm.robotcore.hardware.DcMotorSimple; | |
| @Autonomous | |
| public class SimpleAutonomous extends LinearOpMode { | |
| @Override |
| #include <Servo.h> | |
| const int SENSOR_PIN = 0; | |
| const int SERVO_PIN = 10; | |
| Servo servo; | |
| void setup() { | |
| servo.attach(SERVO_PIN); | |
| } |
| const int SENSOR_PIN = 0; | |
| const int CYCLE_DURATION = 250; | |
| int average = 0; | |
| void setup() { | |
| pinMode(LED_BUILTIN, OUTPUT); | |
| Serial.begin(9600); | |
| } |
There are four ways that a field can be initialized in Java. These are, in order:
| const int SENSOR_PIN = 0; | |
| const int CYCLE_DURATION = 250; | |
| void setup() { | |
| pinMode(LED_BUILTIN, OUTPUT); | |
| Serial.begin(9600); | |
| } | |
| void loop() { | |
| int reading = analogRead(SENSOR_PIN); |
| /* | |
| * Example code for controlling a 28BYJ-48 stepper motor through an L293D H-Bridge | |
| */ | |
| // Include the Arduino Stepper.h library | |
| #include <Stepper.h> | |
| /* | |
| * Motor outputs from the 28BYj-48: | |
| * 1 - blue ------| |
| package org.firstinspires.ftc.teamcode; | |
| import com.qualcomm.robotcore.eventloop.opmode.OpMode; | |
| import com.qualcomm.robotcore.eventloop.opmode.TeleOp; | |
| import com.qualcomm.robotcore.hardware.DcMotor; | |
| import com.qualcomm.robotcore.hardware.DcMotorSimple; | |
| @TeleOp | |
| public class EncodedTankDrive extends OpMode { |
| package org.firstinspires.ftc.teamcode; | |
| import com.qualcomm.robotcore.eventloop.opmode.OpMode; | |
| import com.qualcomm.robotcore.eventloop.opmode.TeleOp; | |
| import com.qualcomm.robotcore.hardware.DcMotor; | |
| import com.qualcomm.robotcore.hardware.DcMotorSimple; | |
| @TeleOp | |
| public class MyFirstOpMode extends OpMode { |