java，for statement：访问循环外的递增值

Question

for(int i = 0 ; i < Tri.length; i++)
    for(int v = 1; v < Tri.length; v++)
    {
        boolean plz = Tri[i].compareColors(Tri[v]);
        if (v == i)
            continue;
        if (plz == true)
            System.out.println("Triangle " + i + " is equal to  Triangle " + v + " " + plz);
    }

我需要在循环之外使用i的值。目前，print语句比我需要的循环语言多21倍。有什么办法我可以访问＆＃39; i＆＃39;将我的所有代码都放在for循环中

Answer 1

要在循环外访问i，请将第一行更改为：

int i = 0;
for(; i < Tri.length; i++)

Answer 2

您可以使用while loop

int i = 0;
int v = 1;
while (i < Tri.length) {
 while (v < Tri.length) {
   boolean plz= Tri[i].compareColors(Tri[v]);
            if(v==i)
            continue;
            if(plz == true )
                System.out.println("Triangle " + i + " is equal to  Triangle "+ v+ " "+  plz);
  v++;
 }
 i++;
}