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[英]Processing Java Error: The nested type (Node) cannot hide an enclosing type
[英]"The nested type cannot hide an enclosing type" class - Java Processing
我收到此錯誤: The nested type cannot hide an enclosing type
。 我查了一下,其他人似乎兩次宣布他們的班級,而我不是。
奇怪的是,如果我將代碼復制並粘貼到新的處理文檔中,它可以正常工作。 但是當我將它轉換為 js 時,我需要它在保存並再次打開后沒有錯誤地工作。
MotorBike Bike1, Bike2, Bike3, Bike4, Bike5, Bike6, Bike7, Bike8, Bike9;
int Score_Bike1 = 0;
int Score_Bike2 = 0;
int Score_Bike3 = 0;
int Score_Bike4 = 0;
int Score_Bike5 = 0;
int Score_Bike6 = 0;
int Score_Bike7 = 0;
int Score_Bike8 = 0;
int Score_Bike9 = 0;
String Score_Spacing = " ";
int GameState = 0;
class MotorBike {
float Pos_X;
int Pos_Y;
float Speed;
int Size = 30;
float WheelSize = Size / 3;
color Color;
MotorBike(int Declare_X, int Declare_Y, int Declare_Speed, color Declare_Color)
{
this.Pos_X = Declare_X;
this.Pos_Y = Declare_Y;
Speed = Declare_Speed;
Color = Declare_Color;
}
void move()
{
if (GameState == 1) {
Speed = (random(0, 50) / 10);
Pos_X = Pos_X + Speed;
}
}
void render()
{
fill(Color);
triangle(Pos_X, Pos_Y, Pos_X + Size, Pos_Y, Pos_X + Size / 2, Pos_Y -Size / 2);
fill(255);
strokeWeight(1.5);
ellipse(Pos_X, Pos_Y, WheelSize, WheelSize);
ellipse(Pos_X + Size, Pos_Y, WheelSize, WheelSize);
}
}
void setup()
{
size(700, 600);
background(200);
SpawnBikes();
}
void draw()
{
background(200);
strokeWeight(3);
line(50, 10, 50, 590);
line(650, 10, 650, 590);
strokeWeight(1);
MoveBikes();
DetectWinner();
DisplayScore();
}
void MoveBikes()
{
Bike1.render();
Bike1.move();
Bike2.render();
Bike2.move();
Bike3.render();
Bike3.move();
Bike4.render();
Bike4.move();
Bike5.render();
Bike5.move();
Bike6.render();
Bike6.move();
Bike7.render();
Bike7.move();
Bike8.render();
Bike8.move();
Bike9.render();
Bike9.move();
}
void DetectWinner()
{
textSize(15);
fill(0);
if (Bike1.Pos_X >= 620) {
noLoop();
text("Bike 1 Wins", 310, 10, 350, 50);
Score_Bike1 += 1;
GameState = 2;
}
if (Bike2.Pos_X >= 620) {
noLoop();
text("Bike 2 Wins", 310, 10, 350, 50);
Score_Bike2 += 1;
GameState = 2;
}
if (Bike3.Pos_X >= 620) {
noLoop();
text("Bike 3 Wins", 310, 10, 350, 50);
Score_Bike3 += 1;
GameState = 2;
}
if (Bike4.Pos_X >= 620) {
noLoop();
text("Bike 4 Wins", 310, 10, 350, 50);
Score_Bike4 += 1;
GameState = 2;
}
if (Bike5.Pos_X >= 620) {
noLoop();
text("Bike 5 Wins", 310, 10, 350, 50);
Score_Bike5 += 1;
GameState = 2;
}
if (Bike6.Pos_X >= 620) {
noLoop();
text("Bike 6 Wins", 310, 10, 350, 50);
Score_Bike6 += 1;
GameState = 2;
}
if (Bike7.Pos_X >= 620) {
noLoop();
text("Bike 7 Wins", 310, 10, 350, 50);
Score_Bike7 += 1;
GameState = 2;
}
if (Bike8.Pos_X >= 620) {
noLoop();
text("Bike 8 Wins", 310, 10, 350, 50);
Score_Bike8 += 1;
GameState = 2;
}
if (Bike9.Pos_X >= 620) {
noLoop();
text("Bike 9 Wins", 310, 10, 350, 50);
Score_Bike9 += 1;
GameState = 2;
}
}
void DisplayScore()
{
textSize(15);
fill(0);
text("Bike 1: " + Score_Bike1 + Score_Spacing + "Bike 2: " + Score_Bike2 + Score_Spacing + "Bike 3: " +
Score_Bike3 + Score_Spacing + "Bike 4: " + Score_Bike4 + Score_Spacing + "Bike 5: " + Score_Bike5 + Score_Spacing +
"Bike 6: " + Score_Bike6 + Score_Spacing + "Bike 7: " + Score_Bike7 + Score_Spacing + "Bike 8: " + Score_Bike8 +
Score_Spacing + "Bike 9: " + Score_Bike9, 65, 530, 635, 700);
}
void keyPressed()
{
if (keyPressed) {
if (key == ' ')
{
if (GameState == 0) {
GameState = 1;
}
if (GameState == 2) {
loop();
background(200);
SpawnBikes();
GameState = 0;
}
}
}
}
void SpawnBikes()
{
Bike1 = new MotorBike(50, 100, 2, color(255, 0, 0));
Bike2 = new MotorBike(50, 150, 2, color(0, 255, 0));
Bike3 = new MotorBike(50, 200, 2, color(0, 0, 255));
Bike4 = new MotorBike(50, 250, 2, color(255, 255, 0));
Bike5 = new MotorBike(50, 300, 2, color(0, 255, 255));
Bike6 = new MotorBike(50, 350, 2, color(255, 0, 255));
Bike7 = new MotorBike(50, 400, 2, color(100, 255, 0));
Bike8 = new MotorBike(50, 450, 2, color(0, 100, 255));
Bike9 = new MotorBike(50, 500, 2, color(255, 0, 100));
}
您的問題是由於您將草圖命名為與您在草圖中使用的類相同的名稱。 如果草圖中有一個MotorBike
類,則您的草圖不能命名為MotorBike
。
重命名您的草圖,或重命名您的班級。
在幕后,這是因為 Processing 將您的 Sketch 導出為 Java 類,並且您的 Sketch 中的任何類都成為該 Java 類的內部類。 所以你的草圖變成了這樣:
class MotorBike{
void draw(){
//whatever
}
class MotorBike{
int x;
//whatever
}
}
這是非法的 Java,這是導致您出錯的原因。 內部類不能與父類同名。 換句話說,嵌套類型不能隱藏封閉類型。
這也是為什么當您將其復制到新草圖時它可以正常工作的原因 - Processing 會為您的草圖提供一個隨機的默認名稱,因此在您將草圖另存為其他內容之前,您不會遇到此名稱沖突。
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