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ArrayString.java
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46 lines (37 loc) · 1.09 KB
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/**
* Created by fengqiang on 2017/4/25.
*/
/*
"12 0 99 -7 30 4 100 13"
要求对字符串中的数值进行排序。生成一个数值从小到大新字符串。
"-7 0 4 12 13 30 99 100"
思路:
1,将字符串切割。变成字符串数组。
2,将字符串数组转成int数组。
3,int数组排序。
4,将int数组变成字符串。
*/
import java.util.*;
class ArrayString {
public static void main(String[] args){
String str = "12 0 99 -7 30 4 100 13";
String newstr = StringNumberSort(str);
System.out.println(newstr);
}
public static String StringNumberSort(String str){
String[] arr = str.split(" ");
int[] nums = new int[arr.length];
for (int i = 0; i < arr.length; i++) {
nums[i] = Integer.parseInt(arr[i]);
}
Arrays.sort(nums);
return Array2String(nums);
}
public static String Array2String(int[] arr){
StringBuffer str = new StringBuffer();
for (int i = 0; i < arr.length; i++) {
str.append(arr[i]+" ");
}
return str.toString();
}
}