class Lesson2
{
public static void main (String [] args)
{
drawRectangle (3,5);
drawRectangle (2,4);
drawRectangle (6,10);
}
static void drawRectangle(int x,int y)//;多了分号
{
for (int i=0;i<x;i++)
{
for (int j=0;j<y;j++)
{
System.out.print ('*'); //打印5个*
}
System.out.println (); //打印回车
}
}
}
{
public static void main (String [] args)
{
drawRectangle (3,5);
drawRectangle (2,4);
drawRectangle (6,10);
}
static void drawRectangle(int x,int y)//;多了分号
{
for (int i=0;i<x;i++)
{
for (int j=0;j<y;j++)
{
System.out.print ('*'); //打印5个*
}
System.out.println (); //打印回车
}
}
}
没有方法体,或者要定义成抽象类
其实就是你多了分号么了