[我在这里尝试对开头和结尾字母相同的字符串中的单词进行排序。应该将其排序,否则不要打扰。
import java.util.*;
public class MyClass {
public static void main(String args[]) {
String arr[]={"zpppz","poop","zllo","bob","yea"};
Arrays.sort(arr , new Comparator<String>(){
public int compare(String a ,String b){
if((a.charAt(0) == a.charAt(a.length()-1 ) )&&(b.charAt(0)==b.charAt(b.length()-1 ) ) ){
return a.compareTo(b);
}
return 0;
}
} );
for(String s: arr ) System.out.println(s);
}
}
预期输出:“鲍勃”“船尾”“ zllo”“ zpppz”是的但即时通讯输出为:“鲍勃”“船尾”“ zpppz”“ zllo”“是”
以下代码可以执行所需的操作,但不使用Comparator
。如果不可接受,请告诉我,我将删除此答案。
String arr[] = {"zpppz", "poop", "zllo", "bob", "yea"};
List<Integer> indexList = new ArrayList<>();
List<String> words2sort = new ArrayList<>();
for (int i = 0; i < arr.length; i++) {
if (isCandidate(arr[i])) {
indexList.add(Integer.valueOf(i));
words2sort.add(arr[i]);
}
}
if (words2sort.size() > 0) {
Collections.sort(words2sort);
int index = 0;
String[] sorted = new String[arr.length];
for (int i = 0; i < arr.length; i++) {
if (index < indexList.size() && indexList.get(index).intValue() == i) {
sorted[i] = words2sort.get(index);
index++;
}
else {
sorted[i] = arr[i];
}
}
System.out.println(Arrays.asList(sorted));
}
运行上述代码的结果:
[bob, poop, zllo, zpppz, yea]