Dereferenced Error Java
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Java Error Double Cannot Be Dereferenced
4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Error of int cannot be dereferenced? up vote 0 down vote favorite I am getting an error
Int Cannot Be Dereferenced Java Meaning
with this constructor, and i have no idea how to fix? I am a beginner at java. This is from an example exercise that i was trying to learn: /** * Create an array of size n and store a copy of the contents of the * input argument * @param intArray array of elements to copy */ public IntArray11(int[] intArray) { int i = 0; String [] Array = new String[intArray.length]; int cannot be dereferenced tostring for(i=0; i
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Int Cannot Be Dereferenced Length
more about Stack Overflow the company Business Learn more about hiring developers or int cannot be dereferenced compareto posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community int cannot be dereferenced equals java Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up “Char cannot be dereferenced” error up vote 4 down http://stackoverflow.com/questions/28213083/error-of-int-cannot-be-dereferenced vote favorite I'm trying to use the char method isLetter(), which is supposed to return boolean value corresponding to whether the character is a letter. But when I call the method, I get an error stating that "char cannot be dereferenced." I don't know what it means to dereference a char or how to fix the error. the statement in question is: if (ch.isLetter()) { .... .... } http://stackoverflow.com/questions/5527114/char-cannot-be-dereferenced-error Any help? What does it mean to dereference a char and how do I avoid doing so? java char dereference share|improve this question edited Oct 19 '12 at 9:13 amesh 94221338 asked Apr 3 '11 at 2:05 user658168 3524713 1 Don't try to call methods on primitives. How about Character.isLetter(ch); –Hovercraft Full Of Eels Apr 3 '11 at 2:08 add a comment| 4 Answers 4 active oldest votes up vote 11 down vote The type char is a primitive -- not an object -- so it cannot be dereferenced Dereferencing is the process of accessing the value referred to by a reference. Since a char is already a value (not a reference), it can not be dereferenced. use Character class: if(Character.isLetter(c)) { share|improve this answer edited Apr 3 '11 at 2:18 answered Apr 3 '11 at 2:09 manji 36.3k36183 1 +1 - though it should also be noted that the . in Character.isLetter(c) denotes the use of a static method of Character. –Stephen C Apr 3 '11 at 3:34 add a comment| Did you find this question interesting? Try our newsletter Sign up for our newsletter and get our top new questions delivered to your inbox (see an example). Subscri
MUZ140721 Bothwell Nhidza MUZ140721 Bothwell Nhidza 4,286 Points Int cannot be dereferenced I am trying to convert the https://teamtreehouse.com/community/int-cannot-be-dereferenced above code to string but all methods are producing an error LandingActivity.java import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; public class LandingActivity extends Activity { public Button mThrustButton; public TextView mTypeLabel; public EditText mPassengersField; public Spaceship mSpaceship; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_landing); mThrustButton = (Button)findViewById(R.id.thrustButton); mTypeLabel = (TextView)findViewById(R.id.typeTextView); mPassengersField = cannot be (EditText)findViewById(R.id.passengersEditText); mSpaceship=new Spaceship("FIREFLY"); mTypeLabel.setText(mSpaceship.getType()); mPassengersField.setText((mSpaceship.getNumPassengers()).toString()); // Add your code here! } } Spaceship.java public class Spaceship { private String mType; private int mNumPassengers = 0; public String getType() { return mType; } public void setType(String type) { mType = type; } public int getNumPassengers() { return mNumPassengers; } public void setNumPassengers(int numPassengers) { mNumPassengers cannot be dereferenced = numPassengers; } public Spaceship() { mType = "SHUTTLE"; } public Spaceship(String type) { mType = type; } } Evan Anger Treehouse Guest Teacher Evan Anger Evan Anger Treehouse Guest Teacher >1y ago Doing a quick pass through on the code, can you call out what line of code is giving you the "Int cannot be deferenced" compile error? This will aid others in helping with a solution. 1 Answer James Simshaw 28,723 Points James Simshaw James Simshaw 28,723 Points over 1 year ago Hello, ints are a primative type and do not have a toString method. The common way on Treehouse videos to convert an int to a string is to concatinate it with an empty string String someString = 12345 + ""; Another way is to use the toString static method on the Integer class String someString = Integer.toString(12345); Posting to the forum is only allowed for members with active accounts. Please sign in or sign up to post