publicclassPerfectNumber{publicstaticvoidmain(String[] args){intfactor=0;//统计因子之和//输出10000以内的完全数for(inti=1; i <=10000; i++) {for(intj=1; j <= i/2; j++) {// i/2为最大值,因不包含小数,if(i % j ==0){//求因数1和本身,2和i/2,3和i/3,不包括本身,所以最大遍历到i/2.factor += j; } }if(factor == i...
public boolean checkPerfectNumber(intnum) {if(num<6||num%2!=0) {returnfalse; }intsum =1;for(inti=2; i<=num/2; i++) {if(num%i ==0) { sum += i; } }returnsum ==num; } 03 第二种解法 我们是不是可以将for循环中的循环次数再缩小一点?第一种解法是num/2次,而一个正整数它所...
public class PerfectNumber { public static void main(String[] args){ int factor = 0;//统计因⼦之和 //输出10000以内的完全数 for (int i = 1; i <= 10000; i++) { for (int j = 1; j <= i/2; j++) {// i/2为最⼤值，因不包含⼩数，if(i % j == 0){ //求因...
This Java program is a simple way to determine whether a number is a perfect square or not. By using the Math.sqrt() method and checking if the square root is an integer, we can easily solve this problem. This type of problem helps students get comfortable with using mathematical functions...
You can also usewhile loopto check the prime number: Just replace this part of the code in above program: for(inti=2;i<=num/2;i++){temp=num%i;if(temp==0){isPrime=false;break;}} with this: inti=2;while(i<=num/2){if(num%i==0){isPrime=false;break;}i++;} ...
2. Java Program to find deficient number publicclassMain { staticintdivsum(intn) { intsum =0; for(inti =1; i <= (Math.sqrt(n)); i++) { if(n % i ==0) { if(n / i == i) { sum = sum + i; }else{ sum = sum + i; ...
2. Categorize Numbers: Abundant, Deficient, Perfect Write a Java program that categorizes integers between 1 and 10,000 as Abundant, Deficient, and Perfect. In number theory, an abundant number is a number for which the sum of its proper divisors is greater than the number itself. ...
So, for a company building a CMS platform or mobile and web apps, we hope this guide could help find you the perfect Java programmer. Frequently Asked Questions What are the Benefits of Hiring Java Developers? How much does it Cost to Hire Java Developers? Should I put together a Dedicated...
Do read the comments to understand the logic of the program. classJavaExample{//method for checking prime numberstaticintcheckPrime(intnum){inti,flag=0;for(i=2;i<=num/2;i++){if(num%i==0){flag=1;break;}}/* If flag value is 0 then the given number num ...
Usually, when you have behavior that's common to every object of a class. For example, suppose you have aWindowclass. A useful item of information you can ask the class is the current number of currently open windows. This information is shared by every instance ofWindowand it is only av...