都不对疯了
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
if(num>=0 && num<999999999){
while(num!=0)
{
count++;
num/=10;
}
}
System.out.println("它是个3位的数!");
}
}
public class Hello{
public static void main(String[] args){
int score=68;
String mark=(score>=60)?"及格":"不及格";
System.out.println("考试成绩如何："+mark);
}
}
int there = one + two;
int there1 += one;
int there2 -= one;
int there3 *= one;
int there4 /= one;
int there5 %= one;
System.out.println("there1","there2","there3","there4","there5");
