Java 忽略文件中的数字
我正在制作一个程序,从一个文件中获取数据,并从中制作一个迷宫游戏。示例maze.txt文件如下所示:Java 忽略文件中的数字,java,arrays,file,io,2d,Java,Arrays,File,Io,2d,我正在制作一个程序,从一个文件中获取数据,并从中制作一个迷宫游戏。示例maze.txt文件如下所示: 5 5 P.XX. ...X. .XT.. ..X.. X.... 其中顶部的两个数字定义了数组的行和列。 这是我正在使用的代码 import java.util.*; import java.io.*; public class MazeGame { public static void main(String[] args) throws Exception {
5 5
P.XX.
...X.
.XT..
..X..
X....
其中顶部的两个数字定义了数组的行和列。
这是我正在使用的代码
import java.util.*;
import java.io.*;
public class MazeGame {
public static void main(String[] args) throws Exception {
// Display the maze
Scanner sc = new Scanner(new File("maze.txt"));
int rows1 = sc.nextInt();
int columns1 = sc.nextInt();
rows1 += 1;
columns1 += 1;
BufferedReader in = new BufferedReader(new FileReader("maze.txt"));
char[][] treasureMaze = new char[rows1][columns1];
for (int i = 0; i < rows1 || i < columns1; ++i) {
String line = in.readLine();
if (line == null) {
System.out.println("Error in array");
return;
}
sc.nextLine();
treasureMaze[i] = line.toCharArray();
}
display(treasureMaze);
int vertical = 0;
int horizontal = 0;
// Give Move Options
options();
// Setup a while loop that continues until
// the user has gotten to the treasure, or 'P'
while (treasureMaze[vertical][horizontal] != 'T') {
// Get Users Decision
Scanner moveChoice = new Scanner(System.in);
int choice = moveChoice.nextInt();
if (choice == 1) {
System.out.println("You chose to Move up");
} else if (choice == 2) {
System.out.println("You chose to Move down");
} else if (choice == 3) {
System.out.println("You chose to Move left");
} else if (choice == 4) {
System.out.println("you chose to Move right");
} else {
return;
}
// Move the Player: Each choice will move the player
// according to their choice and then re-display the
// map and options so that they can move through the maze
// Move Up
if (choice == 1) {
if (vertical - 1 < 0) {
System.out
.println("\nCannot move there! Try something else\n");
display(treasureMaze);
options();
} else if (treasureMaze[vertical - 1][horizontal] == '.') {
treasureMaze[vertical - 1][horizontal] = 'P';
treasureMaze[vertical][horizontal] = '.';
vertical -= 1;
display(treasureMaze);
options();
} else if (treasureMaze[vertical - 1][horizontal] == 'T') {
System.out.println("\nCongratulations you won!");
treasureMaze[vertical][horizontal] = 'T';
} else {
System.out
.println("\nCannot move there! Try something else\n");
display(treasureMaze);
options();
}
}
// Move Down
else if (choice == 2) {
if (vertical + 1 < 0) {
System.out
.println("\nCannot move there! Try something else\n");
display(treasureMaze);
options();
} else if (treasureMaze[vertical + 1][horizontal] == '.') {
treasureMaze[vertical + 1][horizontal] = 'P';
treasureMaze[vertical][horizontal] = '.';
vertical += 1;
display(treasureMaze);
options();
} else if (treasureMaze[vertical + 1][horizontal] == 'T') {
System.out.println("\nCongratulations you won!");
treasureMaze[vertical][horizontal] = 'T';
} else {
System.out
.println("\nCannot move there! Try something else\n");
display(treasureMaze);
options();
}
}
// Move Left
else if (choice == 3) {
if (horizontal - 1 < 0) {
System.out
.println("\nCannot move there! Try something else\n");
display(treasureMaze);
options();
} else if (treasureMaze[vertical][horizontal - 1] == '.') {
treasureMaze[vertical][horizontal - 1] = 'P';
treasureMaze[vertical][horizontal] = '.';
horizontal -= 1;
display(treasureMaze);
options();
} else if (treasureMaze[vertical][horizontal - 1] == 'T') {
System.out.println("\nCongratulations you won!");
treasureMaze[vertical][horizontal] = 'T';
} else {
System.out
.println("\nCannot move there! Try something else\n");
display(treasureMaze);
options();
}
}
// Move Right
else if (choice == 4) {
if (horizontal + 1 < 0) {
System.out
.println("\nCannot move there! Try something else\n");
display(treasureMaze);
options();
} else if (treasureMaze[vertical][horizontal + 1] == '.') {
treasureMaze[vertical][horizontal + 1] = 'P';
treasureMaze[vertical][horizontal] = '.';
horizontal += 1;
display(treasureMaze);
options();
} else if (treasureMaze[vertical][horizontal + 1] == 'T') {
System.out.println("\nCongratulations you won!");
treasureMaze[vertical][horizontal] = 'T';
} else {
System.out
.println("\nCannot move there! Try something else\n");
display(treasureMaze);
options();
}
} else {
System.out.println("Bye!");
return;
}
}
}
// Display Object: prints out the maze for the user
public static void display(char x[][]) {
for (int row = 0; row < x.length; row++) {
for (int column = 0; column < x[row].length; column++) {
System.out.print(x[row][column] + "\t");
}
System.out.println();
}
}
// Options Object: gives the options menu to the user
static void options() {
System.out.println("You may:");
System.out.println("\t1) Move up");
System.out.println("\t2) Move down");
System.out.println("\t3) Move left");
System.out.println("\t4) Move right");
System.out.println("\t0) Quit");
}
}
import java.util.*;
导入java.io.*;
公共级马泽加梅{
公共静态void main(字符串[]args)引发异常{
//展示迷宫
Scanner sc=新扫描仪(新文件(“maze.txt”);
int rows1=sc.nextInt();
int columns1=sc.nextInt();
行1+=1;
列1+=1;
BufferedReader in=新的BufferedReader(新文件读取器(“maze.txt”);
char[][]=new char[rows1][columns1];
对于(int i=0;i //move BufferedReader creation up
BufferedReader in = new BufferedReader(new FileReader("maze.txt"));
Scanner sc = new Scanner(in.readLine()); //Scan first line from the Reader
// The res tof your code as it exists now
int rows1 = sc.nextInt();
int columns1 = sc.nextInt();
rows1 += 1;
columns1 += 1;
Scanner sc = new Scanner(new File("maze.txt"));
int rows1 = sc.nextInt();
int columns1 = sc.nextInt();
char[][] treasureMaze = new char[rows1][columns1];
for (int i = 0; i < rows1; ++i) {
String line = sc.nextLine();
rows1 += 1;
columns1 += 1;
Scanner scan = new Scanner(System.in);
System.out.println("Enter rows and columns");
PrintWriter write = new PrintWriter("maze.txt");
write.println(scan.next());
write.print("a bc db gj");
write.flush();
write.close();
BufferedReader reader = new BufferedReader(new FileReader("maze.txt"));
String rt="";
while((rt=reader.readLine())!=null) {
if(rt.startsWith("5")) {
continue;
}
else {
System.out.println(rt);
}
}
}