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Java如何写第一行两个偶数，第二行四个偶数，第三行六个偶数的语法，从二开始

 int x = 2;
for (int i = 2; i <= 10; i++)
{
for (int j = 0; j < i; j++)
{
System.out.print(x + " ");
x += 2;
}
System.out.println();
}

    static void printEven(int n){
        for(int i=1;i<=2*n;i++){
            System.out.print(2*i+" ");
        }
        System.out.println();
    }

    public static void main(String[] args) {
        // TODO Auto-generated method stub
            Scanner cin = new Scanner(System.in);
            int N = cin.nextInt();
            int i = 1;
            while(i<=N){
                printEven(i);
                i++;
            }
    }

    for (int i = 1; i <= 3; i++) {// 循环多少行
     for (int j = 1; j <= i * 2; j++) {// 每行打印多少个
            System.out.print(j * 2 + " ");// 打印偶数，这里直接用序号
        }
        System.out.println();
    }