带数组的Java For循环

Question

我创建了一个2D数组，需要将元素[I][j]=0,1,2,3,4,或5映射到要打印的彩色像素。这就是我所拥有的。

像素数组，表示不同颜色的整数值

    static int [][] marioArray = new int [][]{
    {0,0,0,0,0,1,1,1,1,1,0,0,0,0,0,0},
    {0,0,0,0,1,1,1,1,1,1,1,1,1,0,0,0},
    {0,0,0,0,2,2,2,3,3,4,3,0,0,0,0,0},
    {0,0,0,2,3,2,3,3,3,4,3,3,3,0,0,0},
    {0,0,0,2,3,2,2,3,3,3,4,3,3,3,0,0},
    {0,0,0,0,2,3,3,3,3,4,4,4,4,0,0,0},
    {0,0,0,0,0,3,3,3,3,3,3,0,0,0,0,0},
    {0,0,0,0,1,1,5,1,1,5,1,1,0,0,0,0},
    {0,0,0,1,1,1,5,1,1,5,1,1,1,0,0,0},
    {0,0,1,1,1,1,5,5,5,5,1,1,1,1,0,0},
    {0,0,3,3,1,5,3,5,5,3,5,1,3,3,0,0},
    {0,0,3,3,3,5,5,5,5,5,5,3,3,3,0,0},
    {0,0,3,3,5,5,5,5,5,5,5,5,3,3,0,0},
    {0,0,0,0,5,5,5,0,0,5,5,5,0,0,0,0},
    {0,0,0,2,2,2,0,0,0,0,2,2,2,0,0,0},
    {0,0,2,2,2,2,0,0,0,0,2,2,2,2,0,0}};

public static void drawPixl (Graphics g, int x, int y, int scale, Color color)
{
    g.setColor(color);
    g.fillRect(x,y,scale,scale);
}

    public static void drawMario (Graphics g, int x, int y, int scale)
    {
        int i;
        for(i = 0, i < 16, i++){
            int j;
            for(j = 0, j <16, j++){
            if (marioArray[i][j] == 1){
                drawPixl(g,scale*i,scale*j,scale,Color.red);}
            if (marioArray[i][j] == 2){
                drawPixl(g,scale*i,scale*j,scale,new Color(94, 38, 18));}
            if (marioArray[i][j] == 3){
                drawPixl(g,scale*i,scale*j,scale,new Color(255, 193, 37));}
            if (marioArray[i][j] == 4){
                drawPixl(g,scale*i,scale*j,scale,Color.black);}
            if (marioArray[i][j] == 5){
                drawPixl(g,scale*i,scale*j,scale,Color.blue);}
            else;
            }
        }
    }

我测试了drawpixl()，它工作得很好。在drawmario中的每个for循环旁边都会弹出唯一的错误，其中声明：

 1. Syntax error on token '<', ( expected

 2. Syntax error, insert ';;) Statement' to complete ForStatement

 3. the method i(int, int) is undefined for the type Animation

此外，int刻度用于定位像素应该在的位置，并赋予其正确的大小

Answer 1

在for循环中使用分号：

int i;
for(i = 0; i < 16; i++){
    int j;
    for(j = 0; j <16; j++){