for loop leap years

[tabako]

I'm supposed to write a program where the user inputs 2 years and use a for loop to test each year in that range if its a leap year and then output that into a string if its a leap year.


I have all of the input that the user puts in but i'm not really sure how i would put in the for loop, because i haven't used for loops before and not sure how i would go about doing that.

I don't have that much in the code so far but i guess i'll print it out here

int input = 0;
int input2 = 0;
int year=0;
String inputValue = JOptionPane.showInputDialog(null, "Enter start year");
String inputValue2 = JOptionPane.showInputDialog(null, "Enter final year");




input = Integer.parseInt(inputValue);
input2 = Integer.parseInt(inputValue2);
System.out.println(input);

for(int i =0; input <= i && i <= input2; ){ ?????

pretty sure what i have up there is wrong atm

[Eranga]

What you can do is, store them in an array.

String inputs = new String[2];

inputs[0] = input;
inputs[1] = input2;

Then loop withing the array.

[felixtfelix]

it looks simple

List leapYears = new ArrayList();
		
for(int i=input;i<=input2;i++){
    if(isLeapYear(i)){
        leapYears.add(i);
    }
}

System.out.println("Leap Years:");
for(int i=0;i<leapYears.size();i++){
    System.out.println(leapYears.get(i));
}

public boolean isLeapYear(int n){
  //leap year logic should go here.
}

[Eranga]

Please use code tags next time. ;)

By the time why don't you try to explain your code to our OP.

[travishein]

For computing leap years, I love to read Roedy's excellent discusssion here:

leap year : Java Glossary