總結：1創(chuàng)建原始數(shù)組（二維數(shù)組）
     2提取二維數(shù)組中的有效值（非零的值或者相同的值）
     3創(chuàng)建稀疏數(shù)組
     4遍歷稀疏數(shù)組，將有效值存放在稀疏數(shù)組中
     


public class arrayXS1 {
    public static void main(String[] args) {
        //第一步，輸出原始數(shù)組
        int[][] array1 = new int[11][11];
        array1[0][1] = 1;
        array1[1][1] = 2;
        for (int i = 0; i < array1.length; i++) {
            for (int j = 0; j < array1[i].length; j++) {
                System.out.print(array1[i][j]+"\t");
            }
            System.out.println();
        }
        //第二部，提取原始數(shù)組中的有效值
        int sum = 0;
        for (int i = 0; i < array1.length; i++) {
            for (int j = 0; j < array1[i].length; j++) {
                if (array1[i][j]!=0){
                    sum++;
                }
            }
        }
        System.out.println("原始數(shù)組有效值個數(shù)："+sum);

        //第三步，創(chuàng)建稀疏數(shù)組
        int[][] array2 = new int[sum+1][3];
        array2[0][0] = 11;
        array2[0][1] = 11;
        array2[0][2] = sum;

        //第四步，遍歷稀疏數(shù)組，將非0的值存放在稀疏數(shù)組中
        int count = 0;
        for (int i = 0; i < array1.length; i++) {
            for (int j = 0; j < array1[i].length; j++) {
                if (array1[i][j]!=0){
                    count++;
                    array2[count][0] = i;
                    array2[count][1] = j;
                    array2[count][2] = array1[i][j];
                }
            }
        }
        //第五步，輸出稀疏數(shù)組
        System.out.println("輸出稀疏數(shù)組");
        for (int[] i :array2){
            for (int j:i){
                System.out.print(j+"\t");
            }
            System.out.println();
        }
        //第六步，將稀疏數(shù)組還原成二維數(shù)組
        int[][] array3 = new int[array2[0][0]][array2[0][1]];
        for (int i = 1;i<array2.length;i++){
            array3[array2[i][0]][array2[i][1]] = array2[i][2];
        }
        //第七步，輸出還原之后的二維數(shù)組
        for (int[] i :array3){
            for (int j:i){
                System.out.print(j+"\t");
            }
            System.out.println();
        }
    }
}