循环x%2>0在java中意味着什么？

Question

我目前正在我的在线课程中学习java，我正在学习循环（特别是continue和break语句）。给我的例子是：

int j = 0
while (true){
    System.out.println();
    j++;
    System.out.print(j);
    if (j%2 > 0) continue
    System.out.print(" is divisible by 2");
    if (j >= 10) break;
}

我不明白为什么它是（j%2>；0）而不是（j%2==0），因为如果“j”是5，那么你做5%2会怎么样。你得到的号码不是1吗？还是我遗漏了什么？有人能给我解释一下吗？ （对不起，我不是。我的问题有点让人困惑。我以前从未使用过这个网站，而且我还很年轻）

Answer 1

让我向你解释。请参见每行旁边的注释

int j = 0          
while (true){
    System.out.println();
    j++;                   //increases the value of j on the next line by 1.
    System.out.print(j);   //prints 1, the first time because of above, 0 + 1.
    if (j%2 > 0) continue  //using modulus operator(%) we are doing 1 % 2, answer is 1
                           //since 1 % 2(if 1 is divisible by 2) > 0 we are 
                           //continue statement breaks the iteration in the 
                           //loop, so anything below this line won't be 
                           //executed.
    System.out.print(" is divisible by 2");//this line will only be executed
                                           //if j is divisible by 2. that is 
                                           //j is divisible by 2 (j%2 == 0)
    if (j >= 10) break;                    //when j is equal or greater than 
                                           //0 we are stopping the while loop.
}

Answer 2

继续意味着“转到循环的顶部，跳过循环的其余代码”，而不是“继续代码”。既然5%2是1，那么1>；0时，将执行continue，直接转到循环的顶部并跳过正文的其余部分

他们为什么使用>；0而不是！=0? 没有任何技术原因，只是风格不同。我个人会用后者，因为它在我的脑海中更清晰。但两者都有效

Answer 3

int j = 0;
while (true){
    System.out.println();
    j++;
    System.out.print(j);
// in this case you won't print any message and you  
// are sure that the next number is even (j will be incremented by "continue;").
    if (j%2 > 0) continue; 
    System.out.print(" is divisible by 2");
    if (j >= 10) break;
}

Answer 4

X%2表示X除以2时的余数。因此，如果x/2的余数大于0，则表示x是奇数。当x%2==0时，x是一个正数