排序步骤 冒泡法 優化排序法

排序方法 冒泡法 優化排序法

import java.util.Arrays;public class Test {public static void main(String[] args) {int[] ary1 = { 1, 6, 5, 8, 9, 2 };Arrays.sort(ary1);System.out.println(Arrays.toString(ary1));int[] ary2 = { 1, 6, 5, 8, 9, 2 };Arrays.sort(ary2, 1, 3);System.out.println(Arrays.toString(ary2));int[] ary = { 1, 6, 5, 8, 9, 2, 6, 12, 7 };for (int i = 0; i < ary.length - 1; i++) {for (int j = i + 1; j < ary.length; j++) {if (ary[i] > ary[j]) {int temp = ary[j];ary[j] = ary[i];ary[i] = temp;}}}System.out.println(Arrays.toString(ary));int[][] dary = { { 1, 2 }, { 2 }, { 2, 3, 7 } };System.out.println(Arrays.deepToString(dary));}}

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結果

[1, 2, 5, 6, 8, 9]
[1, 5, 6, 8, 9, 2]
[1, 2, 5, 6, 6, 7, 8, 9, 12]
[[1, 2], [2], [2, 3, 7]]

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