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我需要一个 Java 函数,它采用 2D 3x3 数组并将其放入 2D 9x9 数组的中心。例如,3x3 数组应如下所示:
{{1,2,3},
{4,5,6},
{7,8,9}}
生成的 9x9 数组应该如下所示:
{{0,0,0,0,0,0,0,0,0}, < OLD|NEW > {{0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0}, {0,0,0,1,2,3,0,0,0},
{0,0,0,0,0,0,0,0,0}, {0,0,0,4,5,6,0,0,0},
{0,0,0,0,0,0,0,0,0}, {0,0,0,7,8,9,0,0,0},
{0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0}} {0,0,0,0,0,0,0,0,0}}
我该怎么做?