自己的答案
public class Guessworld {
public static void main(String[] args) {
String[] worlds = {"extends", "interface", "abstract", "implements", "throw", "orange", "student"};
Random random = new Random();
int index = random.nextInt(worlds.length);
//System.out.println(worlds[index]);
char[] world = new char[worlds[index].length()];
for (int i = 0;
i < world.length;
i++) {
world[i] = '-';
System.out.print(world[i]);
}
Scanner scanner = new Scanner(System.in);
int time = 5;
Guesstext guesstext = new Guesstext();
while (true) {
System.out.println();
char userg = scanner.next().charAt(0);
int num = worlds[index].indexOf(userg);
if (num < 0) {
time--;
if (time == 0) {
break;
}
System.out.println("还剩" + time + "次机会");
guesstext.src(world);
} else {
for (int i = 0;
i < world.length;
i++) {if (userg == worlds[index].charAt(i)) {
world[i] = userg;
}}
guesstext.src(world);
System.out.println();
}
String sre = String.valueOf(world);
if (!sre.contains("-")) {
break;
}}
if (time > 0) {
System.out.println("你赢了!");
} else {
System.out.println("你输了");
System.out.println(worlds[index]);
}
}
}public class Guesstext {
public void src(char[] world){
for (int i = 0;
i老师的答案
public static void printWords(char[] wordNow)
{
for(int i = 0;
i < wordNow.length;
i++)
{
System.out.print(wordNow[i]);
}
}public static void main(String[] args) {
//1随机从题库中挑出一个单词给用户猜
//题库怎么表达---字符串数组
String[] words = {"static","abstract","extends","implements","throw","orange","student","select","group","interface"};
//随机选出一个单词
Random random =new Random();
int randomIndex = random.nextInt(words.length);
//随机下标String selectWord = words[randomIndex];
System.out.println(selectWord);
//定义一个字符数组保存用户当前单词的猜中部分
char[] wordNow = new char[selectWord.length()];
//将字符数组中的每个字符初始设置成-
for(int i = 0;
i < wordNow.length;
i++)
{
wordNow[i] = '-';
}printWords(wordNow);
//2.向用户输出和选出单词同等数量的横线-
//需要知道单词有多少个字符 selectWord.length()int userTimes = 5;
//用户可以猜5次;
//让用户开始猜，接受用户输入一个字符，判断用户输入的字符是否在单词中
//如果不在，机会减一；如果猜对了，就在字符对应的位置将该字符显示出来//上述步骤循环执行，有2种情况跳出循环
//1.用户猜出了单词的全部字符,用户赢了
//2.用户的机会减为0了，用户输了
while(true)
{
Scanner scanner = new Scanner(System.in);
System.out.println();
String strGuess = scanner.next();
//用户输入的字符z
//boolean bIsContains = selectWord.contains(strGuess);
int nIndex = selectWord.indexOf(strGuess);
//interface
if(nIndex < 0)//如果不在，机会减一；输出还剩多少次机会，并且输出当前单词的猜中部分
{
userTimes--;
if(userTimes == 0)
{
break;
}
System.out.println("还剩"+userTimes+"次机会");
printWords(wordNow);
}
else//如果猜对了，就在字符对应的位置将该字符显示出来,其他的位置依然打印-
{
//在字符对应的位置将该字符显示出来,其他的位置依然打印-(有可能该字符在单词中出现多次，都要变身)
for(int i = 0;
i < selectWord.length();
i++)
{
//取出单词的每一个字符
char tempC = selectWord.charAt(i);
if(tempC == strGuess.charAt(0))
{
wordNow[i] = tempC;
}
}printWords(wordNow);
//如果wordNow数组中不在包含-，说明所有的字符全部被猜出来了
String strWordNow = String.valueOf(wordNow);
//字符数组转为字符串
if(!strWordNow.contains("-"))
{
break;
}}
}//判断最终结果
//1.用户猜出了单词的全部字符,用户赢了
//2.用户的机会减为0了，用户输了
if(userTimes > 0)//说明不是因为机会没了跳出的循环
{
System.out.println("恭喜，你猜对啦");
}
else
{
System.out.println("你输了,正确答案是");
System.out.println(selectWord);
}
}
}给定指定文件读出文件里的单词作为数组
package exprerans;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.Scanner;
/**
* Created by ttc on 18-1-5.
*/
//1一个单词数组（字符串数组）
//2随机获取一个单词，随机一个下标(下标值在0到单词数组长度之间)
//3得到单词长度len，创建一个长度为len的字符数组word，数组元素初值均为-
//4循环以下步骤（退出循环的条件为，用户允许猜错的次数<=0或word字符中数组中不再包含-字符）
//5输出word到屏幕
//6获取客户输入，判断随机选出的单词中是否包含用户输入的字符
//7若包含，得到字符在单词中出现的位置，并将该位置的字符替换成用户输入的字符，返回到4
//8若不包含，用户可以猜错的次数减一，返回到4
//9.得出最后结论：判断用户允许猜错的次数是否大于0，如果大于0，输出用户胜利，否则输出用户失败
public class Guessworlw {
public static void bianli(char[] w) {
for (int i = 0;
i < w.length;
i++) {
System.out.print(w[i]);
}
}public static void main(String[] args) throws IOException {
FileReader fileReader = new FileReader("e:/words.txt");
BufferedReader bufferedReader = new BufferedReader(fileReader);
List stringList = new ArrayList<>();
String strWord = bufferedReader.readLine();
while (strWord != null) {
stringList.add(strWord);
strWord = bufferedReader.readLine();
}String[] worlds = new String[stringList.size()];
stringList.toArray(worlds);
//String[] worlds = {"extends", "interface", "abstract", "implements", "throw", "orange", "student"};
Random random = new Random();
int index = random.nextInt(worlds.length);
char[] w = new char[worlds[index].length()];
System.out.println(worlds[index]);
for (int i = 0;
i < w.length;
i++) {
w[i] = '-';
System.out.print(w[i]);
}
int times = 3;
while (true) {Scanner scanner = new Scanner(System.in);
System.out.println();
char userguess = scanner.next().charAt(0);
int aire = worlds[index].indexOf(userguess);
if (aire < 0) {
times--;
if (times == 0) {
break;
}
System.out.println("还剩" + times + "次机会");
bianli(w);
} else {
for (int i = 0;
i < worlds[index].length();
i++) {
char user = worlds[index].charAt(i);
if (user == userguess) {
w[i] = user;
}
}
bianli(w);
}
String nowworld = String.valueOf(w);
if (!nowworld.contains("-")) {
break;
}}
if (times > 0) {
System.out.println("你赢了！共用了" + (3 - times) + "次机会");
System.out.println(worlds[index]);
} else {System.out.println("你输啦");
}}
}
