I'm new at Java, I'm writing this simple program in Greenfoot. If I write "h" the program says "same", now after that I want to write "i" and get "same" too, basically I want to ignore "h" after I get "same" for it. I'm not sure how this is done.
public void act()
{
String letterh = "h";
String letteri = "i";
String keyPress1 = Greenfoot.getKey();
String keyPress2 = Greenfoot.getKey();
if (keyPress1 != null)
{
if(keyPress1.equals(letterh))
{
System.out.println("Same");
}
else
{
System.out.println("Not same");
}
}
if (keyPress2 != null)
{
if(keyPress2.equals(letteri))
{
System.out.println("Same");
}
else
{
System.out.println("Not same");
}
}
}
Just assign new value to letterh when invoked(when "h" is written atleast once).
public void act()
{
String letterh = "h";
String letteri = "i";
String keyPress1 = Greenfoot.getKey();
String keyPress2 = Greenfoot.getKey();
if (keyPress1 != null)
{
if(keyPress1.equals(letterh))
{
Called.call1();
}
}
if (keyPress2 != null)
{
if(keyPress2.equals(letteri))
{
Called.call2();
}
else
{
System.out.println("Not same");
}
}
}
Create a new Class file "Called.java" with the following code.
public class Called {
static String count="one"; //observe this static string usage
static void call1()
{
if(count.equals("one"))
{
System.out.println("Same");
count="somestring"; //call1() if condition will fail with this string not equal to "one"
}
else
{
System.out.println("Not Same");
}
}
static void call2()
{
System.out.println("Same");
}
}
The Main thing to note here is The static keyword usage.
Collected from the Internet
Please contact [email protected] to delete if infringement.
Comments