英文:
formatting used, but output is still not in a neat column
问题
以下是您提供的代码的翻译部分：
import java.io.*;import java.util.Scanner;public class Topic_HW5 {public static String oneGameScore(int x){String scr = " ";if (0 <= x && x < 50)scr = "Horrible";if (50 <= x && x <= 99)scr = "Poor";if (100 <= x && x <= 139)scr = "Good";if (140 <= x && x <= 199)scr = "Very Good";if (200 <= x && x <= 249)scr = "Excellent";if (250 <= x && x <= 300)scr = "Pro";if (x < 0)scr = "Illegal <0";if (300 < x)scr = "Illegal <300";return scr;}public static int avg3Scores(int x, int y, int z) {int avg = (x + y + z) / 3;return avg;}public static boolean validGroup(int x, int y, int z, PrintWriter outputFile) {boolean validGroup = false;if (0 <= x && x <= 300)if (0 <= y && y <= 300)if (0 <= z && z <= 300)validGroup = true;elsevalidGroup = false;return validGroup;}public static void main(String[] args) throws IOException {// TODO Auto-generated method stub// 创建输出文件PrintWriter outputFile = new PrintWriter("hw5out.txt");File myinputFile = new File("C:\\Users\\chroZ\\eclipse-workspace\\Topic3\\src\\hw5input.txt");Scanner inputFile = new Scanner(myinputFile);int score1, score2, score3, avg, avgrtg;int t, f = 0;boolean valid;String rtg, rtg2, rtg3, grpavg = " ";outputFile.printf("%50s", "TABLE OF BOWLING SCORES");// outputFile.printf("\nScore 1\tScore 2\tScore 3\t Valid?\tRating1\tRating2\tRating3");outputFile.printf("\n%1s %7s %7s %7s %8s %8s %8s %12s %14s", "\nScore 1","Score 2", "Score 3", "Valid?", " Rating1", " Rating2", "Rating3", "Avg Score", "Avg Rating");// "\n%1s %7s %7s %7s %8s %8s %8s", "\nScore 1", "Score 2", "Score 3", "Valid?", "Rating1", "Rating2", "Rating3"System.out.println("What was score 1? ");score1 = inputFile.nextInt();while (score1 != -1) {System.out.println("What was score 2? ");score2 = inputFile.nextInt();System.out.println("What was score 3? ");score3 = inputFile.nextInt();valid = validGroup(score1, score2, score3, outputFile);rtg = oneGameScore(score1);rtg2 = oneGameScore(score2);rtg3 = oneGameScore(score3);avg = avg3Scores(score1, score2, score3);avgrtg = avg3Scores(score1, score2, score3);grpavg = oneGameScore(avgrtg);outputFile.println("\n");outputFile.printf("%1d %7d %7d %9b %-12s %-8s %-8s %12d %16s",score1, score2, score3, valid, rtg, rtg2, rtg3, avg, grpavg);System.out.println("What was score 1? ");score1 = inputFile.nextInt();}outputFile.println("\nThe program is complete!");inputFile.close();outputFile.close();outputFile.flush();}}
在这段代码中，最后两列可能出现排版问题。您提到尝试使用格式化而不是制表符和空格来打印它们整齐，但它们似乎被之前的数据推向一侧。这种问题可能是因为您在格式化输出时，使用了不同长度的字符串，导致列对齐不正确。
为了解决此问题，您可以使用格式化字符串中的字段宽度来确保列对齐。在 outputFile.printf 语句中，您可以调整 %12s 和 %16s 的字段宽度以使它们与之前的列对齐。根据您的需求，可以适当增加或减少这些字段宽度，以获得所需的列对齐效果。
英文:
I am writing code to get the information of bowling scores and print it into a neattable. I am trying to get the average rating and average score to print in a neat column. Here is my code.my input file my output file
import java.io.*;import java.util.Scanner;public class Topic_HW5 {public static String oneGameScore(int x){String scr = " ";if (0<=x&&x<50)scr = "Horrible";if (50<=x&&x<=99)scr = "Poor";if (100<=x&&x<=139)scr = "Good";if (140<=x&&x<=199)scr = "Very Good";if (200<=x&&x<=249)scr = "Excellent";if (250<=x&&x<=300)scr = "Pro";if(x<0)scr= "Illegal <0";if(300<x)scr="Illegal <300";return scr;}public static int avg3Scores(int x, int y, int z) {int avg=(x+y+z)/3;return avg;}public static boolean validGroup(int x,int y, int z, PrintWriter outputFile) {boolean validGroup=false;if(0<=x&&x<=300)if(0<=y&&y<=300)if (0<=z&&z<=300)validGroup=true;elsevalidGroup=false;return validGroup;}public static void main(String[] args) throws IOException {// TODO Auto-generated method stub//create outputFilePrintWriter outputFile= new PrintWriter("hw5out.txt");File myinputFile = new File("C:\\Users\\chroZ\\eclipse-workspace\\Topic3\\src\\hw5input.txt");Scanner inputFile = new Scanner(myinputFile);int score1, score2, score3,avg,avgrtg;int t,f=0;boolean valid;String rtg,rtg2,rtg3,grpavg= " ";outputFile.printf("%50s","TABLE OF BOWLING SCORES");//outputFile.printf("\nScore 1\tScore 2\tScore 3\t Valid?\tRating1\tRating2\tRating3");outputFile.printf("\n%1s %7s %7s %7s %8s %8s %8s %12s %14s", "\nScore 1","Score 2", "Score 3", "Valid?", " Rating1"," Rating2", "Rating3", "Avg Score", "Avg Rating");//"\n%1s %7s %7s %7s %8s %8s %8s", "\nScore 1", "Score 2", "Score 3", "Valid?", "Rating1","Rating2", "Rating3"System.out.println("What was score 1? ");score1 = inputFile.nextInt();while(score1 != -1) {System.out.println("What was score 2? ");score2 = inputFile.nextInt();System.out.println("What was score 3? ");score3 = inputFile.nextInt();valid=validGroup(score1,score2,score3,outputFile);rtg=oneGameScore(score1);rtg2=oneGameScore(score2);rtg3=oneGameScore(score3);avg=avg3Scores(score1,score2,score3);avgrtg=avg3Scores(score1,score2,score3);grpavg=oneGameScore(avgrtg);outputFile.println("\n");outputFile.printf("%1d %7d %7d %9b %-12s %-8s %-8s %12d %16s",score1,score2,score3,valid,rtg,rtg2,rtg3,avg, grpavg);System.out.println("What was score 1? ");score1 = inputFile.nextInt();}outputFile.println("\nThe program is complete!");inputFile.close();outputFile.close();outputFile.flush();}}
AS you can see, the last two columns are all out of wack. I tried using formatting instead of \t's and spaces to print them neatly, expecting them to print in a straight column. Instead, they seem to be getting pushed to the side by previous data.I was wondering why this happens and how I can fix it
答案1
得分: 1
首先，在while条件中有一个小改进：
while(inputFile.hasNextInt()) {System.out.println("What was score 1? ");score1 = inputFile.nextInt();System.out.println("What was score 2? ");score2 = inputFile.nextInt();System.out.println("What was score 3? ");score3 = inputFile.nextInt();...
这样你就不必在每次循环结束时检查是否有另一个整数或与-1进行比较了。
对于格式掩码：
String headerFormatMask = "%1s %7s %7s %-6s %-12s %-12s %-12s %1s %10s";String formatMask = "%1s %7s %7s %10s %-12s %-12s %-12s %1s %16s";outputFile.printf(headerFormatMask,"Score 1","Score 2","Score 3","Valid?","Rating1","Rating2","Rating3","Avg Score","Avg Rating");...while (inputFile.hasNextInt()) {...outputFile.println("\n");outputFile.printf(formatMask,score1,score2,score3,valid,rtg,rtg2,rtg3,avg,grpavg);}
注意标题格式掩码和每行的格式掩码是平衡的。
总的来说，在适应后的main方法中的代码如下：
// todo change input / output files as necessaryPrintWriter outputFile = new PrintWriter("output.txt");File myinputFile = new File("input.txt");Scanner inputFile = new Scanner(myinputFile);int score1, score2, score3, avg, avgrtg;int t, f = 0;boolean valid;String rtg, rtg2, rtg3, grpavg = " ";outputFile.printf("%50s", "TABLE OF BOWLING SCORES");outputFile.printf("\n");String headerFormatMask = "%1s %7s %7s %-6s %-12s %-12s %-12s %1s %10s";String formatMask = "%1s %7s %7s %10s %-12s %-12s %-12s %1s %16s";outputFile.printf(headerFormatMask,"Score 1","Score 2","Score 3","Valid?","Rating1","Rating2","Rating3","Avg Score","Avg Rating");while(inputFile.hasNextInt()) {System.out.println("What was score 1? ");score1 = inputFile.nextInt();System.out.println("What was score 2? ");score2 = inputFile.nextInt();System.out.println("What was score 3? ");score3 = inputFile.nextInt();valid = validGroup(score1, score2, score3, outputFile);rtg = oneGameScore(score1);rtg2 = oneGameScore(score2);rtg3 = oneGameScore(score3);avg = avg3Scores(score1, score2, score3);avgrtg = avg3Scores(score1, score2, score3);grpavg = oneGameScore(avgrtg);outputFile.println("\n");outputFile.printf(formatMask,score1,score2,score3,valid,rtg,rtg2,rtg3,avg,grpavg);}outputFile.println("The program is complete!");inputFile.close();outputFile.close();outputFile.flush();
希望这些帮助！
英文:
First, there is a small improvement to make in the while condition:
while(inputFile.hasNextInt()) {System.out.println("What was score 1? ");score1 = inputFile.nextInt();System.out.println("What was score 2? ");score2 = inputFile.nextInt();System.out.println("What was score 3? ");score3 = inputFile.nextInt();...
In this way you don't have to check at the end of each cycle for another integer or compare with -1.
For the format masks:
String headerFormatMask = "%1s %7s %7s %-6s %-12s %-12s %-12s %1s %10s";String formatMask = "%1s %7s %7s %10s %-12s %-12s %-12s %1s %16s";outputFile.printf(headerFormatMask,"Score 1","Score 2","Score 3","Valid?","Rating1","Rating2","Rating3","Avg Score","Avg Rating");...while (inputFile.hasNextInt()) {...outputFile.println("\n");outputFile.printf(formatMask,score1,score2,score3,valid,rtg,rtg2,rtg3,avg,grpavg);
Notice how the header format mask and the one for each row balance each other out.
In total, the code in the adapted main method is:
// todo change input / output files as necessaryPrintWriter outputFile= new PrintWriter("output.txt");File myinputFile = new File("input.txt");Scanner inputFile = new Scanner(myinputFile);int score1, score2, score3,avg,avgrtg;int t,f=0;boolean valid;String rtg,rtg2,rtg3,grpavg= " ";outputFile.printf("%50s","TABLE OF BOWLING SCORES");outputFile.printf("\n");String headerFormatMask = "%1s %7s %7s %-6s %-12s %-12s %-12s %1s %10s";String formatMask = "%1s %7s %7s %10s %-12s %-12s %-12s %1s %16s";outputFile.printf(headerFormatMask,"Score 1","Score 2","Score 3","Valid?","Rating1","Rating2","Rating3","Avg Score","Avg Rating");while(inputFile.hasNextInt()) {System.out.println("What was score 1? ");score1 = inputFile.nextInt();System.out.println("What was score 2? ");score2 = inputFile.nextInt();System.out.println("What was score 3? ");score3 = inputFile.nextInt();valid=validGroup(score1,score2,score3,outputFile);rtg=oneGameScore(score1);rtg2=oneGameScore(score2);rtg3=oneGameScore(score3);avg=avg3Scores(score1,score2,score3);avgrtg=avg3Scores(score1,score2,score3);grpavg=oneGameScore(avgrtg);outputFile.println("\n");outputFile.printf(formatMask,score1,score2,score3,valid,rtg,rtg2,rtg3,avg,grpavg);}outputFile.println("\nThe program is complete!");inputFile.close();outputFile.close();outputFile.flush();}
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