Arrays工具類的使用
阿新 • • 發佈:2021-06-22
import java.util.Arrays; public class Demo09 { public static void main(String[] args) { System.out.println("==============Arrays.sort()==============="); int[] b = {1, 5, 9, 2, 7, 5}; Arrays.sort(b); for (int i = 0; i < b.length; i++) { System.out.print(b[i] + " "); } System.out.println(); System.out.println("==============Arrays.fill(int[] a, int val)==============="); int[] c = {1, 5, 9, 2, 7, 5}; Arrays.fill(c, 2); for (int i = 0; i < c.length; i++) { System.out.print(c[i] + " "); } System.out.println(); System.out.println("==============Arrays.fill(int[] a, int fromIndex, int toIndex, int val)============="); int[] d = {1, 5, 9, 6, 7, 5}; Arrays.fill(d, 2, 4, 2); for (int i = 0; i < d.length; i++) { System.out.print(d[i] + " "); } } }
執行結果
==============Arrays.sort()===============
1 2 5 5 7 9
==============Arrays.fill(int[] a, int val)===============
2 2 2 2 2 2
==============Arrays.fill(int[] a, int fromIndex, int toIndex, int val)=============
1 5 2 2 7 5
Process finished with exit code 0