import java.io.File;
import java.util.Scanner;
public class scoresedit {
public static void main(String[] args) throws Exception{
System.out.println("Reads in a file at the beginning of a loop, displays these top 3 scores by name and their respective score." +
"\nEnter a new name and score following a prompt. " +
"\nIf the new name and score exceeds one of the top three scores," +
"\nplaces the new name in the top three, moving all lower scores down, dropping the lowest score." +
"\nSaves the results in the file top3Scores.txt." +
"\nStops the loop when exit is entered for a name.");
File r = new File ("top3Scores.txt");
System.out.println(r);
String str = readSource (r);
System.out.println(str);
String[] strArray = new String[] {str};
Scanner in = new Scanner(System.in);
System.out.print("Enter a new name and score or 'exit' to quit:");
String nameAndScore = in.nextLine();
String[] nameAndScoreArray = new String[] {nameAndScore};
String nameAndScoreArray1[] = nameAndScore.split(" ");
while (nameAndScore != "exit") {
if (nameAndScoreArray[1] > strArray[1]) }
}
private static String readSource(File r) throws Exception{
Scanner in;
in = new Scanner (r);
String str = "";
while (in.hasNext())
str += in.nextLine() +"\n";
in.close();
return str;
}
}
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当我尝试比较两个数组并且我不知道如何解决它时,我不断收到错误"操作符>未定义参数类型java.lang.String,java.lang.String".代码没有完成; 显然我在if语句下添加更多但我想先解决这个问题.
您正在尝试比较nameAndScoreArray[1]和strArray[1]它们是琴弦,我认为它们包含两个球队的得分和一个得分最高的获胜,所以要使用Integer.parseInt(String string),才能看到哪一个具有最高得分:
if (Integer.parseInt(nameAndScoreArray[1]) > Integer.parseInt(strArray[1]))
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