★★ Java の宿題ここで答えます Part 65 ★★

★★ Java の宿題ここで答えます Part 65 ★★ at TECH

935:デフォルトの名無しさん
08/09/11 14:35:17
>>934
import java.io.*;
import java.util.*;
public class Test1 {
public static void main(String[] args) {
try {
BufferedReader reader = new BufferedReader(new FileReader("Test1.txt"));
List<String> lineList = new ArrayList<String>();
String line;
while ((line = reader.readLine()) != null) lineList.add(line);
Collections.sort(lineList, new Comparator<String>(){
public int compare(String o1, String o2) {
String[] lefts = o1.split(":");
String[] rights = o2.split(":");
return Integer.parseInt(lefts[0]) - Integer.parseInt(rights[0]);
}
});
for (String text : lineList) System.out.println(text);
System.out.println("");
} catch (IOException e) {
System.out.println(e);
}}}

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