java语言编写，编译和执行一个输出为下图的java class项目名称为ArrowDown.java

Question

java语言编写，编译和执行一个输出为下图的java class，class名称为ArrowDown.java

Answer 1

已修改

public class ArrowDown {
    public static void main (String[] args) 
    {
        int i,j;
        for(j=0;j<4;j++){
            for (i=0;i<6;i++)
                System.out.print(" ");
            for (i=0;i<3;i++)
                System.out.print("v");
            System.out.println();
        }
        
        for(j=0;j<5;j++){
            if(j==4)
                for (i=0;i<2*j-1;i++)
                    System.out.print(" ");
            else
                for (i=0;i<2*j;i++)
                    System.out.print(" ");
            for (i=0;i<(5-j-1)*2-1;i++)
                System.out.print("v");
            System.out.print("v");
            for (i=0;i<(5-j-1)*2-1;i++)
                System.out.print("v");
            System.out.println();
        }
    }
}