textcrackcode.java

编写一个java应用程序。用户从键盘输入一个1-9999之间的数

import java.io.IOException;
import java.lang.StringBuffer;

//测试类

public class TextCrackCode {
	public static void main(String args[]) throws IOException {
		
		// 初始化字符串
		String CodeString = "bzdz izu sxgzd vs lh ,"
				+ "vpzg woflsh vs vwrh vhlsddlmp gl"
				+ "m wrw gzy vsg .gflyz gstfzu bvsg"
				+ " gzsd hdmlp vml lm ,hghzvy wmz h"
				+ "wiry mvvdgvy izd z hzd vivsg ,lt" + "z tmlo tmlO";
		// 调用lang包里面的StringBuffer类
		// ----------------字符传翻转-------------------
		StringBuffer StrB = new StringBuffer(CodeString);
		StrB.reverse();
		// -----------------最终译码--------------------
		char RealCode[] = new char[CodeString.length()];
		for (int i = 0; i < StrB.length(); i++) {
			boolean isLetter = true;
			isLetter = Character.isLetter(StrB.charAt(i));  //判断是否为字母
			if (!isLetter) {
				RealCode[i] = StrB.charAt(i);  // 非字母的符号不作任何改变
			} else {
				if (StrB.charAt(i) >= 'a' && StrB.charAt(i) <= 'z') {
					RealCode[i] = (char) (122 - (int) StrB.charAt(i) + 97);
				} else {
					RealCode[i] = (char) (90 - (int) StrB.charAt(i) + 65);
				}
			}
		}
		System.out.println("原密码如下：");
		System.out.println(CodeString+"\n");
		System.out.println("原密码翻转一次的结果如下：");
		System.out.println(StrB+"\n");
		System.out.println("密码翻译结果如下：");
		System.out.println(RealCode);

	}

}