ex3_3.txt

我在做实验时编的小程序！

public class Ex3_3{
public static void main(String args[]){
double d1=23.4;
double d2=35.1;
if(d2>=d1)
System.out.println(d2+">="+d1);
else
System.out.println(d1+">="d2);}}
2. public class Ex22{
public static void main(String args[]){
int n,num,num1;
System.out.println("在1——1000可被3与7整除的为");
for(n=1;n<=1000;n++){
num=n%3;
num1=n%7;
if(num==0){
if(num1==0)
System.out.println(n+" ");}}
System.out.println(" ");}}
3. public class Ex33{
public static void main(String args[]){
int score=80;
if(score>=85&&score<=100)
System.out.println("优秀");
 if(score<85&&score>=70)
System.out.println("良");
 if(score<70&&score>=60)
System.out.println("及格");
if(score<60&&score>=0)
System.out.println("差");
}}