我需要写一个程序来生成随机的Haikus。我的计划是让程序读取包含指定数量的音节名词、动词和形容词的文件,但我在编码方面遇到了问题。现在它看起来是这样的:
package poetryproject;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Random;
import java.util.Scanner;
public class PoetryProject {
public static void main(String[] args) throws FileNotFoundException {
Random gen = new Random();
Scanner adjectivesFile = new Scanner(new File("AdjectivesFile.dat"));
Scanner nounFile = new Scanner(new File("NounFile.dat"));
Scanner verbFile = new Scanner(new File("VerbFile.dat"));
int adjectiveCount = adjectivesFile.nextInt();
String[] adjectiveList = new String[adjectiveCount];
for (int i = 0; i < adjectiveCount; i++) {
adjectiveList[i] = adjectivesFile.nextLine();
}
adjectivesFile.close();
int nounCount = nounFile.nextInt();
String[] nounList = new String[nounCount];
for (int i = 0; i < nounCount; i++) {
nounList[i] = nounFile.nextLine();
}
nounFile.close();
int verbCount = verbFile.nextInt();
String[] verbList = new String[verbCount];
for (int i = 0; i < verbCount; i++) {
verbList[i] = verbFile.nextLine();
}
verbFile.close();
for (int count = 1; count <= 1; count++) {
System.out.printf("The %s %s \n", adjectiveList[gen.nextInt(adjectiveList.length)]);
}
for (int count = 1; count <= 1; count++) {
System.out.printf("%s %s \n", nounList[gen.nextInt(nounList.length)]);
}
for (int count = 1; count <= 1; count++) {
System.out.printf("%s %s \n", verbList[gen.nextInt(verbList.length)]);
}
}
}对于我的输出,我只得到了" the“形容词部分。为什么会这样呢?
哦,是的,我目前只致力于让第一行正确打印出来。
发布于 2013-04-11 03:27:20
由于您没有为System.out.printf指定第二个参数,因此它将生成无法在第1行找到符号错误:
System.out.printf("The %s %s \n",adjectiveList[gen.nextInt(adjectiveList.length)]);
^删除第二个格式说明符,并编写如下代码:
System.out.printf("The %s\n", adjectiveList[gen.nextInt(adjectiveList.length)]);这应该可以解决您的问题。
发布于 2013-04-11 03:21:12
第一个printf()的格式说明符与参数不匹配:
System.out.printf("The %s %s \n", adjectiveList[gen.nextInt(adjectiveList.length)]);这将抛出一个MissingFormatArgumentException,在打印形容词部分之后提前结束您的程序。
https://stackoverflow.com/questions/15934501
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