I agree that it’s tricky. What teases in methodThree is that t is changed in the course of the call to methodTwo. So when you are looking at t.sum before and after that call, you are not looking at the same t. How is t changed? This happens when methodTwo calls methodOne, which in turn … Read more
return “”; just returns an empty string. If you put alist.get(i).getCountry() outside of the for loop it will not make sense. (I’m assuming that’s what you mean by “end the body with that.”) It depends on i, which only exists in the loop. It’s tough to see why you’re getting that error without seeing more … Read more
I found that following this guide http://www.techrepublic.com/blog/software-engineer/a-comprehensive-troubleshooting-guide-for-androids-r-cannot-be-resolved-error/ solves the error. I’m not sure dough if “R cannot be found” is the exact cause of error. 1 solved The import android cannot be resolved
It’s a for-each loop. Num is some object which implements Iterable<String> like a String[] array or a collection like for example ArrayList<String>. The loop is executed once for each entry in that data structure. In each iteration of the loop, String Number is a different entry. What the loop does exactly, is to read each … Read more
Unless the text always comes in a very regular fashion, regex is not a suitable for parsing source code like this. You should write/use a parser instead. Assuming: There will be no DECLARE statements between CREATE FUNCTION and BEGIN There will not be any other statements in between the DECLARE statements There will always be … Read more
When we create a setter method in java , how does java know to which variable we want to set the given value from the setter ? read discription please solved When we create a setter method in java , how does java know to which variable we want to set the given value from … Read more
In rare cases the thing that you want could be reasonably, but normally the class is not aware of all it’s elements. A total Score is for a Collection of Score elements, maybe a List or a Set. So you would do: class Score { int value; // … public static int totalScore(Collection<Score> scores){ int … Read more
Use the isAfterNow() method: boolean inFuture = datetimeobject.isAfterNow(); 1 solved Compare Joda DateTime objects
Just use a if condition. if (i == 1) { animal = “dog”; } else if (i == 2) { animal = “cat”; } Some additional comments: I would recommend using Enum instead of String. This: for(int puzzleNum = 1; puzzleNum <= NUMANIMALS; mazeNum++) looks like an infinite loop to me, as your puzzleNum doesn’t … Read more
Object a = new Object(); method(a); public void method(Object a){ // do operation on Object a } Since you are passing the object reference the change will get reflect on your actual object. An enum type is a special data type that enables for a variable to be a set of predefined constants. The variable … Read more
i have realised the problem was that i had allocated a smaller memory to Intellij go to On the Help menu, click Edit Custom VM Options. and edit the Xmx 8224 means 8Gb allocated to intellij solved Maven Dependencies taking too long to download
public class Test { public static void main(String[] args) { int x = getNumber(); printNumber(x); } public static int getNumber() { int x = 5; return x; } public static void printNumber(int x) { System.out.println(x); } } solved How to return an Int from one method to another in java [duplicate]
From inspection, I can see that your month array is missing the month of May, and therefore only has 11 elements in it. As a result, when you iterate over the 12 elements in the temperature array, you will get an array out of bounds exception during the final temperature, because there is no corresponding … Read more
Follow the steps First Jsp Page <%@ taglib uri=”http://java.sun.com/jsp/jstl/core” prefix=”c”%> <%@ page session=”false”%> <html> <body> <form action=”main.jsp” method=”GET”> First Name: <input type=”text” name=”first_name”> <br /> Last Name: <input type=”text” name=”last_name” /> <input type=”submit” value=”Submit” /> </form> </body> </html> Second JSP page (page name main.jsp) <html> <head> <title>Using GET Method to Read Form Data</title> </head> <body> … Read more
See the doc, it should be used this way: public BigInteger mod(BigInteger m) public BigInteger divide(BigInteger val) You can change it to this: factorialans.mod(BigInteger.valueOf(10)) and factorialans.divide(BigInteger.TEN) solved counting the zeros in the the factorial number, please the check the error