Question

java 计算1~100之间能被3整除的数累加之和并输出

Answer 1

int sum = 0;
for(int i = 1; i <= 100; i++)
{
if( i % 3 == 0)
{
sum += 3;
}
}
System.out.println("1~100之间能被3整除的数累加之和:" + sum);

Answer 2

上面的那个有点小错误
int s=0,i=1;
for(int i; i <= 100; i++)
if( i % 3 == 0)
s += i;
System.out.println("1~100之间能被3整除的数累加之和:" + s);

Answer 3

class Test
{
public static void main(String args[])
{
int sum=0;
int i=0;
for(i=1;i<=100;i++)
{
if(i%3==0)
{
System.out.println("能被3整除的数"+i);
sum+=i;
}
}
System.out.println("1~100之间能被3整除的数累加之和: "+sum);
}
}

Answer 4

public class M{
public static void main(String[] args)
{
int i, sum = 0; ;
for (i = 1; i <= 100; i++)
{
if (i % 3 == 0)
{
sum += i;
System.out.println(" " + i);
}
}
System.out.println("sum="+sum);
}