2017年360公司校招Java研发笔试编程第一题

2017年360公司校招笔试编程第一题

（服务端开发工程师-Java职位）

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import java.util.Scanner;

public class Main {
	/** 2017年360公司校招 编程1题	
	 * 
	 * */
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		while (in.hasNext()) {
			String line = in.nextLine();
			String line1 = in.nextLine();
			String line2 = in.nextLine();
			//去程
			Boolean b1 = line.contains(line1);
			Boolean b2 = false;
			Boolean b3 = false;
			if (b1 == true) {
				String line3 = line.substring(line.indexOf(line1) + line1.length());
				b2 = line3.contains(line2);
				if (b2 == true) {
					b3 = true;
				}
			}
			//返程
			StringBuilder sb1 = new StringBuilder(line);
			sb1.reverse();	//输入的旗帜颜色逆序排列
			Boolean c1 = sb1.toString().contains(line1);
			Boolean c2 = false;
			Boolean c3 = false;
			if (c1 == true) {
				String line3 = sb1.toString().substring(sb1.toString().indexOf(line1) + line1.length());
				c2 = line3.contains(line2);
				if (c2 == true) {
					c3 = true;
				}
			}

			if (b3 == true && c3 == true) {
				System.out.println("both");
			} else if (b3 == true && c3 == false) {
				System.out.println("forward");
			} else if (b3 == false && c3 == true) {
				System.out.println("backward");
			} else {
				System.out.println("invalid");
			}
		}
	}
}