public static void main(String[] args) {
int[][] array1 = new int[11][11];
array1[1][2] = 1;
array1[2][3] = 1;
System.out.println("输出原始数组");
for (int[] ints:array1){
for (int anInt : ints){
System.out.print(anInt+"\t");
}
System.out.println();
}
System.out.println("====================");
int sum = 0;
for (int i = 0; i < 11; i++) {
for (int j = 0; j < 11; j++) {
if (array1[i][j]!=0){
sum++;
}
}
}
System.out.println("有效值得个数:"+sum);
int[][] array2 = new int[sum+1][3];
array2[0][0] = 11;
array2[0][1] = 11;
array2[0][2] = sum;
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];
}
}
}
System.out.println("稀疏数组");
for (int i = 0; i < array2.length ; i++) {
System.out.println(array2[i][0]+"\t"
+ array2[i][1]+"\t"
+ array2[i][2]+"\t");
}
System.out.println("=====================");
System.out.println("还原");
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];
}
System.out.println("输出还原得数组");
for (int[] ints : array1){
for (int anInt : ints){
System.out.print(anInt+"\t");
}
System.out.println();
}
}