将字符串转换为char并按降序排序（ascii） [英] Converting string to char and sort in descending order (ascii)

问题描述

我创建了一个程序，它将使用户输入整数（一个接一个），存储在数组中，并按降序显示整数。程序还要求用户输入一个字符串将其转换为char使用 string.toCharArray（）。我已经正确完成显示整数的降序。

这是整数的代码：

  for（i = 0; i  System.out.print（为索引[+ i + - >）; 
 nums [i] = Integer.parseInt（br.readLine（））;} 
 
 while（pass  for（i = 0; i < （nums.length-pass）; i ++）{
 if（nums [i]  temp = nums [i] 
 nums [i] = nums [i + 1]; 
 nums [i + 1] = temp; 
} 
} 
 pass ++; 
} 
 System.out.println（\\\
\\\
按降序排序的数字为：\\\
）; 
 for（i = 0; i  System.out.println（nums [i]）; 
  

这是字符串到数组的代码。这是我有问题的地方。我没有运行程序的错误只是我不知道如何正确地做。

  System.out .print（Input a string）; 
 String strValue = br.readLine（）; 
 char [] chrValues; 
 chrValues = strValue.toCharArray（）; 
 
 while（flag< chrValues.length）{
 for（c = 0; c <（chrValues.length- flag）; c ++）{
 if（chrValues [c] < chrValues [i + 1]）{
 tempo = chrValues [c]; 
 chrValues [c] = chrValues [c + 1]; 
 chrValues [c + 1] = tempo;} 
} 
} 
标志++; 
 System.out.println（\\\
\\\
以字符转换并按降序排序的字符串为：\\\
）; 
 for（c = 0; i  System.out.println（chrValues [c]）;} 
  
解决方案
 p $ p> 
 
 
您可以尝试
  String str =AbCdEf; 
 char [] arr = str.toCharArray（）; 
 
 for（int i = 0; i  System.out.println（）; 
 
 Arrays.sort（arr）; //按升序排序
 
 //向后打印，即按降序排列。 
 for（int i = arr.length-1; i> = 0; i--）System.out.print（arr [i]）; 
 System.out.println（）; 
  
 print 
  AbCdEf 
 fdbECA 
  
 
I am creating a program which will make the user input integer (one after another), stored in array and display  the integers in descending order. The program also ask to the user to input a string convert it to char using string.toCharArray(). I've correctly done displaying the integer into descending order. The problem is I don't know how to display the char descendingly.

This is the code for the integer:
for(i=0;i<nums.length;i++){
        System.out.print("Enter value for index["+i+"] here --> ");
        nums[i]=Integer.parseInt(br.readLine());}

while(pass<nums.length){
        for(i=0;i<(nums.length-pass);i++){
            if(nums[i]<nums[i+1]){
                temp=nums[i];
                nums[i]=nums[i+1];
                nums[i+1]=temp;
            }
        }
        pass++;
}
System.out.println("\n\nThe numbers when sorted descendingly are :\n");
    for(i=0;i<nums.length;i++){
        System.out.println(nums[i]);
This is the code for the string to array. This is where i'm having problems. I don't have errors in running the program just it's just I don't how to do it correctly.
System.out.print("Input a string");
        String strValue= br.readLine();
        char[] chrValues;
        chrValues=strValue.toCharArray( );

while(flag<chrValues.length){
   for (c=0; c< (chrValues.length- flag); c++){
        if(chrValues[c]<chrValues[i+1]){
         tempo=chrValues[c];
                chrValues[c]=chrValues[c+1];
                chrValues[c+1]= tempo;}
   }
}
 flag++; 
 System.out.println("\n\nThe String when converted in character and sorted descendingly     are :\n");    
    for(c=0;i<chrValues.length;c++){
        System.out.println(chrValues[c]);}
By the way, I used flag as a temporary array storage.
解决方案
You can try
String str = "AbCdEf";
char[] arr = str.toCharArray();

for(int i = 0; i < arr.length; i++) System.out.print(arr[i]);
System.out.println();

Arrays.sort(arr); // sorted in ascending order

// print them backwards i.e. descending order.
for(int i = arr.length - 1; i >= 0; i--) System.out.print(arr[i]);
System.out.println();
prints
AbCdEf
fdbECA


                        
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