public class Text01{
public static void main(String args[]){
int score = -1;
if(score>85&&score<=100){
System.out.print("A");
}
else if(score>75&&score<=85){
System.out.print("B");
}
else if(score>60&&score<=75){
System.out.print("C");
}
else if(score<=60&&score>=0){
System.out.print("D");
}
else {
System.out.print("buzhengchang");
}
}
}
2.打印出100-200之间所有的素数
1 public class Text02{
2 public static void main(String args[]){
3 for(int i=100;i<=200;i++){
4 boolean b = false;
5 for(int j=2;j<=i-1;j++){
6 int k =i%j;
7 if(k==0){
8 b=true;
9 }
10 }
11 if(!b){
12 System.out.print(i +"\n");
13 }
14 }
15 }
16 }
java4android (练习使用if else结构),布布扣,bubuko.com
时间： 2024-10-17 09:42:02