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在这个 do while 循环中，计算年平均值和年平均温度低和年平均温度高的计算无法正常工作。

while (inFile.hasNext()) {
    //extract Month name from file
    month = inFile.next();
    //Remove comma for better presentation
    String   formatMonth = month.replace(',', ' ');
    //calculate high temperature from text file
    highTemp  = inFile.nextDouble();
    //extract low temperature file from text file
    lowTemp = inFile.nextDouble();
    //Calculate averaget Temperature from values
    averageTemp = (highTemp + lowTemp)/2;
    //Calculate Range
    range = (highTemp - lowTemp);
    //Calculate low temperature
    minTemp = Math.min(minTemp, lowTemp);
    //Calculate high temperature
    maxTemp = Math.max(maxTemp, highTemp);
    //Sum up high temperatures
    highSum =+ highTemp;
    //Sum up low Temperatures
    lowSum =+ lowTemp;
    //calculate yearly sum
    yearlySum =+ averageTemp;
    //Calculate average of all the high temperatures
    totalAvgHigh = highSum/12;
    //Calculate average of all low temperatures
    totalAvgLow = lowSum/12;
    //Calculate the average of the years
    totalAvgYearly = yearlySum/12;
    //Calculate averge of the range
    totalRangeAvg = (highSum +lowSum)/12;

    System.out.println(formatMonth + "   |     " + highTemp + "         |       " + lowTemp + "     |      " + averageTemp + "    |    " + range );
    outFile.println(formatMonth + "   |           " + highTemp + "         |       " + lowTemp + "     |      " + averageTemp + "    |    " + range );
}

//Print out calculated values
System.out.print("Average High Temps: " + totalAvgHigh + " Average Low Temps: " + totalAvgLow + " Total Average: " + totalAvgYearly + " Total Range Average: " + totalRangeAvg);
System.out.println("High Temp " + maxTemp);
System.out.println("Low Temp " + minTemp);
outFile.print("Average High Temps: " + totalAvgHigh + " Average Low Temps: " + totalAvgLow + " Total Average: " + totalAvgYearly + " Total Range Average: " + totalRangeAvg);
outFile.println("High Temp " + maxTemp);
outFile.println("Low Temp " + minTemp);

输出是这样的：

enter code here:
---------------------------------------------------------------------------------
    Month    |  High Temperature | Low Temperature | Average Temperature | Range 
---------------------------------------------------------------------------------
January    |     72.0         |       -12.0     |      30.0    |    84.0
February   |     75.0         |       -5.0     |      35.0    |    80.0
March    |     80.0         |       8.0     |      44.0    |    72.0
April    |     98.0         |       15.0     |      56.5    |    83.0
May    |     98.0         |       29.0     |      63.5    |    69.0
June    |     100.0         |       28.0     |      64.0    |    72.0
July    |     103.0         |       48.0     |      75.5    |    55.0
August    |     106.0         |       40.0     |      73.0    |    66.0
September    |     102.0         |       35.0     |      68.5    |    67.0
October    |     90.0         |       26.0     |      58.0    |    64.0
November    |     85.0         |       14.0     |      49.5    |    71.0
December    |     76.0         |       -10.0     |      33.0    |    86.0
Average High Temps: 6.333333333333333 Average Low Temps: -0.8333333333333334 Total Average: 2.75 Total Range Average: 5.5High Temp 1.7976931348623157E308
Low Temp -12.0
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1 回答 1

5

尝试使用+=而不是=+. 我以前从未见过这样的...

于 2011-04-10T22:04:17.577 回答