//输出100-200之间的质数
public class Zhis {
public static void main(String[] args) {
for(int i=101; i<=200; i+=2) {
for(int j=2; j<i; j++) {
if(i % j == 0) {
continue;
System.out.println("i=" + i);
}
}
}
}
}
public class Zhis {
public static void main(String[] args) {
for(int i=101; i<=200; i+=2) {
for(int j=2; j<i; j++) {
if(i % j == 0) {
continue;
System.out.println("i=" + i);
}
}
}
}
}
public static void main(String args[]) {
int i, j;
for (i = 101; i > 100 && i < 200; i++) {
for (j = 2; j < i / 2; j++) {
if (i % j == 0)
break;
} if (i % j != 0)
System.out.println(i + "是素数!");
} }}
public void getZhiShu(){
for(int i=101;i<=200;i+=2){
for(int j=2;j<=i/2;j++){
if(i%j==0){
break;
}else{
System.out.println(i);
break;
}
}
}
}
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("输入一个正整数: ");
int n = sc.nextInt();
boolean isPrime = true;
if (n > 1)
{
for (int i = 2; i <= Math.sqrt(n) && isPrime; i++)
{
if (n % i == 0)
isPrime = false;
}
System.out.println(n + "是质数么? " + isPrime);
}
else if (n == 1)
System.out.println("1不是质数.");
}
}
package lihan; public class testPrimeNumber { public boolean isZhishu(int x,int a)
{
if (a < x) {
if (x % a == 0)
return false;
else
return isZhishu(x,a+1);
}
else
return true; }
/**
* @param args
* @author 李晗
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
testPrimeNumber tpn = new testPrimeNumber();
boolean b = tpn.isZhishu(12, 2);
System.out.print(b);
} }http://blog.csdn.net/lihan6415151528/archive/2008/12/04/3443659.aspx
public class Zhis {
public static void main(String[] args) {
for(int i=101; i<=200; i+=2) {
boolean flag = false;
for(int j=2; j<i; j++) {
if(i % j == 0) {
flag = true;
break;
}
}
if (!flag) {
System.out.println(i + "是质数");
}
}
}
}
//输出100-200之间的质数
public class Zhis {
public static void main(String[] args) {
for(int i=101; i<=200; i+=2) {
boolean flag = false;
for(int j=2; j<i; j++) {
if(i % j == 0) {
flag = true;
break;
}
}
if (!flag) {
System.out.println(i + "是质数");
}
}
}
}
public class PrimeNumber {
public static void main(String[] args) {
boolean f = true;
for(int i=101; i<=200; i+=2){
for(int j=2; j<i; j++){
if(i % j == 0){
f = false;
break;
}
}
if(!f){
continue;
}
System.out.print(i+" ");
}
}
}