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Copy pathPerfect.java
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34 lines (32 loc) · 834 Bytes
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importjava.util.Scanner;
/*
perfect Number between 1-N
*/
publicclassPerfect {
publicstaticvoidmain(String[] args) {
Scannerin = newScanner(System.in);
System.out.println("Enter the no. - ");
longn=in.nextInt();
inti;
for(i = 2; i < n; i++) {
if(isNumPerfect(i)) {
System.out.println(i + " is a perfect number");
}
}
in.close();
}
publicstaticbooleanisNumPerfect(inti) {
booleanisPerfect = false;
intsum = 1;
intx;
for(x = 2; x <= i / 2; x++) {
if(i % x == 0) {
sum += x;
}
}
if(sum == i) {
isPerfect = true;
}
returnisPerfect;
}
}