Question

JAVA按着字典顺序排序

求答案，数组〖“red”，“yellow”，“Black”，“Green”〗,进行排序，要求首字母按着字典顺序，不区分大小写，谢谢帮忙了，求答案，感激不尽

Answer 1

package com.play;

public class Decimal2Binary {
public static void main(String[] args)
{
String [] strArray = new String[]{"red","yellow","Black","Green"};
String t = null;
System.out.println("排序前");
for(String s : strArray)
System.out.print(s+"\t");
int i,j,k;
for(i=0;i<strArray.length-1; i++)
{
k=i;
for(j=i+1;j<strArray.length;j++)
{
Character c1 = Character.valueOf(strArray[j].charAt(0));
Character c2 = Character.valueOf(strArray[k].charAt(0));
if(c1.compareTo(c2)<0)
k=j;
}
if(i!=k)
{
t=strArray[i];
strArray[i]=strArray[k];
strArray[k]=t;
}
}
System.out.println("\n排序后:");
for(String s : strArray)
System.out.print(s+"\t");
}

}

Answer 2

如果同时有 new String[] { "ye", "yel", "yellow" };你的排序是ye,yel,yellow
但是如果new String[] { "yel", "ye", "yellow" };排序就变成 排序后:yel ye yellow

Answer 3

sortStr = new String[]{"red","yellow","Black","Green"};

Arrays.sort(sortStr );
System.out.println(Arrays.asList(sortStr ));

Answer 4

。。。？？？

Answer 5

有好几个方法呢 map