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javaについて

Q&A

package class03;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class RandomMapGame extends Map {
private int errorCount = 0;
int i;

public RandomMapGame(int width, int height) throws IOException{
	
	
	System.out.println("障害物の数を入力してください");
	while(true) {
		BufferedReader sr = new BufferedReader(new InputStreamReader(System.in));
    	String str = sr.readLine();
		i = Integer.parseInt(str);
		if(i>10) {
			System.out.println("入力された値は範囲外です");
			System.out.println("[0, 8]の範囲で入力してください");
		}
		else {
			break;
		}
	}
	int a = (int)(Math.random()*8);
	int b = (int)(Math.random()*8);
	int aa, bb;
	
	while(true){
		aa = (int)(Math.random()*8);
    	bb = (int)(Math.random()*8);
    	
    	
    	if((-2 <= aa-a && aa-a <= 2) && -2 <= bb-b && bb-b <= 2) {
    		break;
    	}
    	else {
    		continue;
    	}
	}
	initialize(width, height, a, b, bb, aa);
	createObstacles(i);

}


	
	



public void start(Target target)throws IOException {
   
	/** 以下に必要なコードを追記してください **/
	int b=0;
	
	
	
	while(true) {
		if(b==0) {
	System.out.println("**********");
	printMap(target);
	System.out.println("**********");
		}
	System.out.print("移動:右6, 左4, 上8, 下2 ?");

	try {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		
		int key = Integer.parseInt(br.readLine());
		
		
			if (canMoveTarget(target, key)) {
				target.moveTarget(key,8,8);
				//errorCount=0;
				b=0;
				if(b==0) {
					System.out.println("エラー回数は"+errorCount+"です");
				}
			} 
				else {
					
				if(key!=6&&key!=4&&key!=8&&key!=2) {
						   System.out.println("2,4,6,8のいずれかを選択してください");
							b=1;
					}else {
				System.out.println("動けない!");
				errorCount++;
					}
				if(b==0) {
					System.out.println("エラー回数は"+errorCount+"です");
				}
				if(errorCount==5) {
					System.out.println("ゲームオーバー!");
					break;
				}
			
			}
		} catch (NumberFormatException e) {
			System.out.println("数字を入力してください.");
		}
	
	 
	
	if(isGoal(target)) {
		
		System.out.println("ゴールに到着!");
		break;
	}
	
	
	}
	
	
	
	
	}

}

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