【发布时间】：2021-02-07 16:47:44
【问题描述】：
我想基本上使用数组将教室座位分配给学生。因此，我想将该信息与学生姓名一起保存到不同的文本文件中，并且我设法用学生的姓名做到了这一点，但我无法分配座位，因为我不确定如何使用单个数组。我基本上希望程序使用 (1)(1)、(1)(2)...等列和行来分配座位。如果是 3x10 的教室，那么行数限制应该是 3，列数应该是 10，但是如果教室大小是 6x5，那么应该有 6 行 5 列。所以根据用户选择的教室，数组（分配座位）应该改变。
示例输入：
Select Your Class Size!
A 6x5 Classroom or a 3X10 classroom?
Enter '6x5' or '3x10' please!
6x5
Ok, so you have selected 6x5
Your classroom size looks like this:
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
Now Enter The Number Of Students!
3
Enter the names of the 3 students!
George
Paul
Jacob
The Student Names And Seat Location Are As Follows:
George Seat Location:
Paul Seat Location:
Jacob Seat Location:
样本输出：
选择你的班级人数！
A 6x5 Classroom or a 3X10 classroom?
Enter '6x5' or '3x10' please!
6x5
Ok, so you have selected 6x5
Your classroom size looks like this:
XXXXXX
XXXXXX
XXXXXX
XXXXXX
XXXXXX
Now Enter The Number Of Students!
3
Enter the names of the 3 students!
George
Paul
Jacob
The Student Names And Seat Location Are As Follows:
George Seat Location: (1)(1)
Paul Seat Location: (1)(2)
Jacob Seat Location: (1)(3)
注意：如果用户选择 3x10 的教室，那么座位位置会相应改变，因为行数和列数会有限制。如果我选择 3x10 教室，在 (1)(3) 之后，下一个座位位置将是 (2)(1)，然后是 (2)(2)，(2)(3)，然后它将进入下一列 = => (3)(1)...等，直到达到最大列。您能帮我创建执行此操作的数组吗？人名和座位位置应该保存在名为StudentNames的纺织品中注意：学生姓名已经保存，我只是在座位位置上挣扎
代码：
// Import scanner
import java.util.Scanner;
import java.io.*;
// Create a class and method
class Main {
public static void main(String[] args) {
// Clear the screen
System.out.print("\033[H\033[2J");
System.out.flush();
// Create scanner object
Scanner inp = new Scanner(System.in);
// Create a print statement
System.out.println("Select Your Class Size!\n");
System.out.println("A 6x5 Classroom or a 3X10 classroom?\n Enter '6x5' or '3x10' please!\n");
String Class1 = "6x5";
String Class2 = "3x10";
Double input[] = new Double[1];
String selectClassSize = inp.next();
int indexOfx = selectClassSize.indexOf('x');
int xcount = 0;
boolean containsx = indexOfx == 0 || indexOfx == (selectClassSize.length() - 2);
if (containsx) {
input[xcount] = Double.parseDouble(selectClassSize.replace("x", ""));
System.out.println("\nOk, so you have selected " + Class1);
System.out.println("Your classroom size looks like this:\n");
int rows = 6;
int columns = 5;
int classSize[][] = new int [rows][columns];
for(int i = 0; i < classSize[0].length; i++){
for(int j = 0; j < classSize.length; j++){
System.out.print("X");
}
System.out.println();
}
xcount++;
} else {
System.out.println("\nOk, so you have selected " + Class2);
System.out.println("Your classroom size looks like this:\n");
int rows2 = 3;
int columns2 = 10;
int classSize2[][] = new int [rows2][columns2];
for(int x = 0; x < classSize2[0].length; x++){
for(int y = 0; y < classSize2.length; y++){
System.out.print("X");
}
System.out.println();
}
}
// Create a scanner variable
System.out.println("\nNow Enter The Number Of Students!");
int numOfStudents = inp.nextInt();
// Create a counter variable to count upto the numOfStudents and break the loop
int counter = 0;
System.out.println("\nEnter the names of the " + numOfStudents + " students!\n");
try {
// Initialize the new objects
FileWriter fw = new FileWriter("StudentNames");
BufferedWriter bw = new BufferedWriter(fw);
String[] names = new String[numOfStudents];
// Output the first names in the textfile
for (int x = 0; x < numOfStudents; x++) {
names[x] = inp.next();
bw.write(names[x]+"Seat Location:");
bw.newLine();
}
bw.close();
fw.close();
// Catch any errors
} catch (Exception e) {
System.out.println("An Error Occured!");
}
try {
// Initialize the new objects
FileReader fr = new FileReader("StudentNames");
BufferedReader br = new BufferedReader(fr);
String line = br.readLine();
// Start a while loop to output the data from the file
System.out.println("\nThe Student Names And Seat Location Are As Follows:");
while (line != null) {
System.out.println(line);
line = br.readLine();
}
br.close();
fr.close();
// Catch any errors
} catch (Exception e1) {
System.out.println("An Error Occured!");
}
}
}
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标签： java arrays sorting for-loop multidimensional-array