2、编写一个Java程序，从键盘上输入任意一个整数，计算并输出小于该整数的最大的素数。 编写一个Java Applet程序，接受用户输入的10个整数...
\u600e\u4e48\u7f16\u5199\u4e00\u4e2aJAVA\u7a0b\u5e8f,\u4ece\u952e\u76d8\u8f93\u5165\u4efb\u610f\u4e24\u4e2a\u6574\u6570\u8fdb\u884c\u76f8\u9664\u64cd\u4f5c\u5e76\u8f93\u51fa\u7ed3\u679c,\u4f7f\u75282\uff1f\u5229\u7528\u767eJava\u5e94\u7528\u7a0b\u5e8f\u7f16\u5199\u8981\u6c42\u8f93\u5165\u4e24\u4e2a\u6574\u5ea6\u6570\u5e76\u8ba1\u7b97\u4e24\u4e2a\u6570\u636e\u4e4b\u548c\u5177\u77e5\u4f53\u64cd\u4f5c\u6b65\u9aa4\u9053\u5982\u4e0b\uff1a\u5185
import java.util.Scanner
public class Test {
public static void main(String[] args) {
System.out.print("\u8bf7\u8f93\u5bb9\u5165\u7b2c\u4e00\u4e2a\u6574\u6570\uff1a")
Scanner s=new Scanner(System.in)
int a=s.nextInt()
System.out.print("\u8bf7\u8f93\u5165\u7b2c\u4e8c\u4e2a\u6574\u6570\uff1a")
int b=s.nextInt()
System.out.println(a+b)
}
}
\u63a5\u53d7\u7528\u6237\u8f93\u5165\u768410\u4e2a\u6574\u6570\uff0c\u5e76\u8f93\u51fa\u8fd910\u4e2a\u6574\u6570\u7684\u6700\u5927\u503c\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a
public class MaxNumber { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int[] arrayInt = new int[10]; System.out.println("\u8bf7\u8f93\u516510\u4e2a\u6574\u6570\uff1a"); // \u8f93\u516510\u4e2a\u6574\u6570 for (int i = 0; i < 10; i++) { int nextInt = scanner.nextInt(); arrayInt[i] = nextInt; } // \u6392\u5e8f for (int i = 0; i < arrayInt.length - 1; i++) { for (int j = 0; j < arrayInt.length - i - 1; j++) { if (arrayInt[j] < arrayInt[j + 1]) { int temp = arrayInt[j]; arrayInt[j] = arrayInt[j + 1]; arrayInt[j + 1] = temp; } } } // \u6700\u5927\u503c int maxNum = arrayInt[0]; System.out.println("10\u4e2a\u6574\u6570\u7684\u6700\u5927\u503c\uff1a" + maxNum); }}\u8fd0\u884c\u6548\u679c\uff1a
public class Test {
/*
* 先判断是否素数，是输出，不是递归在判断
*/
private static void findNum(int num){
int i,j,k=0;
j=num/2;
for( i=2;i<=j;i++){
if(num%i==0){
findNum(--num);
break;
}
}
if(i>j){
System.out.println(num);
}
}
public static void main(String []args){
Scanner sc=new Scanner(System.in);
System.out.print("请输入一个数字");
int a=sc.nextInt();
findNum(a);
}
}
import java.util.*;
public class Test {
public static void main(String[] args) {
System.out.println("输入一个整数");
int a = new Scanner(System.in).nextInt();
boolean demo = true;
int m = 0;
for(int i=3; i<a; i++) {
for(int j=2; j<=i/2; j++) {
if(i%j == 0) {
j = i; //使次循环结束
demo = false;
}
}
if(demo) {
m = i;
}
demo = true;
}
System.out.println(m+"为小于"+a+"的最大素数");
}
}
望采纳。
有什么看不懂追问好了
public class Sushu {
public static void main(String[] args){
Scanner cin = new Scanner(System.in);
System.out.println("Please enter one number!");
int number = cin.nextInt();
for(int i = number-1; i>0;i--){
boolean ju = false;
for(int j =2;j<i;j++){
if(i%j == 0){
ju = true;
break;
}
}
if(ju){
continue;
}
System.out.println(i);
break;
}
}
}
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