java java的素数程序
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Prime number program for java
提问by idude
I'm new to programming and need help on a java program. I want my program to return all the prime numbers between 1 and 10.
我是编程新手，需要有关 Java 程序的帮助。我希望我的程序返回 1 到 10 之间的所有质数。
for(int i=1; i<=10; i++){
int factors = 0;
int j=1;
while(j<=i){
if(i % j == 0){
factors++;
}
j++;
}
if(factors==2){
System.out.println(j);
}
}
Instead of receiving 2,3,5 and 7 I receive 3,4,6,and 8
我收到的不是 2、3、5 和 7，而是 3、4、6 和 8
回答by Veger
You print jinstead of i, change your println()line to:
您打印j而不是i，将您的println()行更改为：
System.out.println(i);
Your results are 'one too large' as j = i + 1after the while-loop.
j = i + 1在while-loop之后，您的结果“太大了” 。
回答by padilo
just print i instead of j
只打印 i 而不是 j
for(int i=1; i<=10; i++){
int factors = 0;
int j=1;
while(j<=i){
if(i % j == 0){
factors++;
}
j++;
}
if(factors==2){
System.out.println(i);
}
}
