版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/sword_anyone/article/details/89208432
对一个方阵转置,就是把原来的行号变列号,原来的列号变行号
例如,如下的方阵:
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
转置后变为:
1 5 9 13
2 6 10 14
3 7 11 15
4 8 12 16
但,如果是对该方阵顺时针旋转(不是转置),却是如下结果:
13 9 5 1
14 10 6 2
15 11 7 3
16 12 8 4
package exe16_20;
public class Exe20 {
static int[][] array = new int[4][4];
public static void main(String[] args) {
init();
print();
System.out.println(" --------- ");
turning();
System.out.println(" --------- ");
turning2();
System.out.println(" --------- ");
}
private static void turning2() {
for (int i = 0; i < array.length; i++) {
for (int j = 0; j < array[i].length; j++) {
System.out.print(array[3-j][i]+"\t");
}
System.out.println();
}
}
private static void turning() {
for (int i = 0; i < array.length; i++) {
for (int j = 0; j < array[i].length; j++) {
System.out.print(array[j][i]+"\t");
}
System.out.println();
}
}
private static void print() {
for (int i = 0; i < array.length; i++) {
for (int j = 0; j < array[i].length; j++) {
System.out.print(array[i][j]+"\t");
}
System.out.println();
}
}
private static void init() {
int count=1;
for (int i = 0; i < array.length; i++) {
for (int j = 0; j < array[i].length; j++) {
array[i][j]=count++;
}
}
}
}
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