或者你这么写 int count = 0; for (int i = 1000; i < 10000; i++) { if(i%3==0) count++; } System.out.println(count);
public static void main(String[] args) { int c = 0; for (int i = 10006;i<=99996;i+=10){ if (i%3==0){ c++; } } System.out.println(c); }
public static void fun04(){ int count = 0; for(int i = 10000; i < 100000; i++){ boolean endWithSix = String.valueOf(i).endsWith("6"); boolean modeByThree = i%3 == 0; if(endWithSix && modeByThree){ count++; Conica.pl(count+","+i); } } }
public static void main(String[] args) { int c = 0; for (int i = 1;i<=9999;i+=10){ if (i%3==0){ c++; } } System.out.println(c); }
class test { public static void main(String []args) { for(int i=1;i<=9;i++) { int j=i*10000+i*1000+i*100+i*10+i*6; if(j%3==0&&j<99999) System.out.println(j); }
} }
public static void main(String[] args) { System.out.println("结果是:") for (int i = 10006;i<=99996;i+=10) { if (i%3==0) { System.out.println(i) }
int count = 0;
for (int i = 1000; i < 10000; i++) {
if(i%3==0)
count++;
}
System.out.println(count);
int c = 0;
for (int i = 10006;i<=99996;i+=10){
if (i%3==0){
c++;
}
}
System.out.println(c);
}
int count = 0;
for(int i = 10000; i < 100000; i++){
boolean endWithSix = String.valueOf(i).endsWith("6");
boolean modeByThree = i%3 == 0;
if(endWithSix && modeByThree){
count++;
Conica.pl(count+","+i);
}
}
}
public static void main(String[] args) {
int c = 0;
for (int i = 1;i<=9999;i+=10){
if (i%3==0){
c++;
}
}
System.out.println(c);
}
{
public static void main(String []args)
{
for(int i=1;i<=9;i++)
{
int j=i*10000+i*1000+i*100+i*10+i*6;
if(j%3==0&&j<99999)
System.out.println(j);
}
}
}
System.out.println("结果是:")
for (int i = 10006;i<=99996;i+=10)
{
if (i%3==0)
{
System.out.println(i)
}
}
}
个位数是6能被3整除
等价于: 能被3整除的四位数有多少个(由被三整除的特性决定)当然就是9000/3 =3000个