【公基】百化分 - 常考 20 种百化分，java 乱序出题训练，常见常考百分数和分数对应关系

package 百化分;

import java.text.NumberFormat;
import java.util.Collections;
import java.util.HashMap;
import java.util.Scanner;

public class PercentageCorrespondence {
	static HashMap<String, Integer> arrMap = new HashMap<String, Integer>(32){{
		put("33.3%", 3);
		put("25%", 4);
		put("20%", 5);
		put("16.7%", 6);
		put("14.3%", 7);
		put("12.5%", 8);
		put("11.1%", 9);
		put("10%", 10);
		put("9.1%", 11);
		put("8.3%", 12);
		put("7.7%", 13);
		put("7.1%", 14);
		put("6.7%", 15);
		put("6.3%", 16);
		put("5.9%", 17);
		put("5.6%", 18);
		put("5.3%", 19);
		put("5%", 20);
		put("4%", 25);
		put("2.2%", 45);
	}};

	public static void main(String[] args) {
        int rightNum = 0;
        int index = 0;
        int totalNum = arrMap.size();
		for(String key:arrMap.keySet()){
			index++;
            System.out.println("第"+index+"题，"+"还剩"+(totalNum-index)+"题:");
			System.out.println(key + " = ");
	        Scanner input = new Scanner(System.in);
	        if(input.nextInt() == arrMap.get(key)) {
	        	System.out.print("\033[1;96m" + "√ 正确 罒ω罒 " +"\033[m");
	        	rightNum++;
	        } else {
	        	System.out.print("\033[1;91m" + "X 错误 (；′⌒`) "+"\033[m");
	        }
	        System.out.println("，答案是："+arrMap.get(key));
		}
    	NumberFormat nf = NumberFormat.getNumberInstance();
    	nf.setMaximumFractionDigits(2);
		System.out.print("恭喜完成！正确率："+nf.format((float)rightNum/totalNum*100)+"%");
	}
	
}