[英]How do I sort args into ascending order?
我正在嘗試將“args”按升序排序,我錯過了什么? 每當我在命令行中放置隨機參數時,前兩個參數都會起作用,我會得到一個數組和一個字符串。 但是,在第三個中,我希望將數組按升序排序。 輸入始終為 0。
我也嘗試創建自己的算法,但它不起作用。
import java.util.Arrays;
public class tri {
public static void main (String[] args)
{
if (args.length < 3) {
System.out.println("Re-execute with at least 3 arguments");
System.exit(-1);
}
System.out.println("\n Printing as an array:");
for (int i=0; i < args.length; i++) //print each word
System.out.println(args[i]);
String str = "";
for (int i=0; i < args.length; i++)
str = str + args[i] + " "; //concatenate into a string
System.out.println("\n Printing as a string:");
System.out.println(str); //print the string
System.out.println("\n Printing after sorting:");
int [] sorted = new int[args.length];
Arrays.sort(sorted); //sort the sorted array
System.out.println(Arrays.toString(sorted));
/*for (int i=0; i < args.length - 1; i++) {
System.out.print(args[i] + " ");
}*/
}
}
輸出:
Printing as an array:
ball
cat
ship
Printing as a string;
ball cat ship
Printing after sorting;
[0, 0, 0]
我很確定這就是你想要做的:
import java.util.Arrays;
public class Tri {
public static void main(String[] args) {
Arrays.sort(args);
System.out.println(Arrays.toString(args));
}
}
作為程序參數,我輸入了"abc" "efg" "abz"
,輸出是
[abc, abz, efg]
Process finished with exit code 0
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.