以下是使用Java语言试着编写的求1-100内的素数的程序：

public class PrimeNumbers {public static void main(String[] args) {System.out.println("Prime numbers between 1 and 100 are:");for (int i = 2; i <= 100; i++) {if (isPrime(i)) {System.out.print(i + " ");}}}public static boolean isPrime(int number) {// 0 and 1 are not prime numbersif (number <= 1) {return false;}for (int i = 2; i <= Math.sqrt(number); i++) {if (number % i == 0) {return false;}}return true;}}

此程序会打印出1-100内的所有素数。运行结果如下：

Prime numbers between 1 and 100 are:2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97

(文章为作者在学习java过程中的一些个人体会总结和借鉴，如有不当、错误的地方，请各位大佬批评指正，定当努力改正，如有侵权请联系作者删帖。)