public class HelloWorld{
public static void main(String[] args){
System.out.println("1212");
}
}
public static void main(String[] args){
System.out.println("1212");
}
}
2023-03-30
public class HelloWorld{
pubilc stastic void main(String[] args){
System.out println(''Hello World'');
}
}
System的首字母要大写,String的首字母也要大写
pubilc stastic void main(String[] args){
System.out println(''Hello World'');
}
}
System的首字母要大写,String的首字母也要大写
2023-03-20
最简单的做法,给大家参考一下
public class HelloWorld{
public static void main(String[] args){
int num = 9999;
int count = 0;
char ccount;
while(num/10>0){
count+=1;
num=num/10;
}
count+=1;
System.out.println("它是个"+count+"位的数!");
}
}
public class HelloWorld{
public static void main(String[] args){
int num = 9999;
int count = 0;
char ccount;
while(num/10>0){
count+=1;
num=num/10;
}
count+=1;
System.out.println("它是个"+count+"位的数!");
}
}