类的无参方法(课后5)

有错误,请老师修改一下

public class cai {
int shu;
public int in(){
int min=1;
int max=10;
shu =(int)(Math.random()*max)+min;
switch(shu){
case 1:
case 2:
case 3:
case 4:
case 5:
String w = "汽车";
int che=100000;

case 6:
case 7:
case 8:
case 9:
case 10:
String q="冰箱";
int xiang=2000;

<pre name="code" class="java">

import java.util.*;

public class gue {
int ha;
int num;

public void de() {
cai de = new cai();
de.in();
ha = de.in();
if (ha == 1 || ha == 2 || ha == 3 || ha == 4 || ha == 5) {
System.out.print("请猜测汽车的价格:");
ha = 100000;
} else if (ha == 6 || ha == 7 || ha == 8 || ha == 9 || ha == 10) {
System.out.print("请猜测冰箱的价格:");
ha = 2000;
}
for (int i = 1; i <= 4; i++) {
Scanner input = new Scanner(System.in);
num = input.nextInt();

if (num > ha) {
System.out.println("再小点");
System.out.println();
System.out.print("再猜一次吧:");
if (i >= 4) {
break;

}
} else if (num < ha) {
System.out.println("再大点");
if (i >= 4) {
break;

}
System.out.println();
System.out.print("再猜一次吧:");
} else {
System.out.print("猜对了!");
break;
}

}
System.out.println();
System.out.println("4次内没有猜对,下次努力吧!");
}
}

public class ss {

public static void main(String[] args) {

gue he=new gue();
he.de();

}

}

}return shu;
}

}