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最近我试图自动化JavaScript的编码,当我遇到一些我的变量的问题。基于Java中的另一个int更改int
Scanner scan = new Scanner(System.in);
System.out.print("Enter x start coordinate: ");
int xCoord = scan.nextInt();
System.out.print("Enter y start coordinate: ");
int yCoord = scan.nextInt();
String more = "y";
int num1 = 0 + xCoord;
int num2 = 5 + yCoord;
int num3 = 13 + xCoord;
int num4 = 10 + yCoord;
System.out.println("ctx.moveTo(" + num1 + "," + num2 + ");"
+ "\nctx.lineTo(" + num3 + "," + num4 + ")\n"
+ "Mid Point: " + num3 + "," + num4);
System.out.print("Again?: ");
more = scan.next();
while (more.equals("y"))
{
System.out.println("Enter a direction (above, left, right): ");
String nextDir = scan.next();
if (nextCube.equals("right"))
{
xCoord += 13;
yCoord += 5;
}
else if (nextDir.equals("left"))
{
xCoord -= 13;
yCoord += 5;
}
else if (nextDir.equals("above"))
{
yCoord -= 18;
}
System.out.println("ctx.moveTo(" + num1 + "," + num2 + ");"
+ "\nctx.lineTo(" + num3 + "," + num4 + ")\n"
+ "Mid Point: " + num3 + "," + num4);
System.out.print("Again?: ");
more = scan.next();
}
我发现,要求朝的XCOORD和YCOORD变量的变化移动方向,但“民”的变量并没有随着新的值更新后。我知道在我的思维过程中一定有什么问题会影响Java中依赖变量的工作方式,但我不知道是什么。请帮助!
你有使用调试器了吗? –
当你说“因变量”时,这听起来像你认为,当xCoord变化时,不知何故num1动态更新? – Bill
不知道为什么所有的downvotes。这是一个基于关于变量声明如何工作的基本误解的初学者问题,但它包含了回答它所需的所有元素。 –