Write a program that reads an unspecified number of integers, determines pos, neg, total, average
You need to read more numbers. You read one value before your loop. You could do something like
Java
Java – Change int to ascii
Is there a way for java to convert int’s to ascii symbols?
What is `AnyType` in java generics
There is no predefined type named AnyType. I am guessing you have come across a poorly named type parameter variable. The naming convention for type variables is suggested to be single uppercase letters, to avoid this type of confusion. In your case, TestRpn<AnyType extends Comparable<AnyType>> should be rephrased as TestRpn<E extends Comparable<E>>, which in turn … Read more
Maven build Compilation error : Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project Maven
I have a maven project forked and cloned from a git repo onto my eclipse. It is build on Java 8. The first thing i do is perform a But I get following failure message: However, below is the build path details of the project which clearly has JRE – 8 set up: and the … Read more
How to print binary tree diagram in Java?
I’ve created simple binary tree printer. You can use and modify it as you want, but it’s not optimized anyway. I think that a lot of things can be improved here 😉 Output 1 : Output 2 :
Java Error Exception in thread “AWT-EventQueue-0” java.lang.StackOverflowError
I fixed the error by removing all the runOnce stuff in the testing class and change the button clicked code to
A tool for calculating the big-O time complexity of Java code? [closed]
As @emory pointed out, it is provably impossible to determine the big-O time complexity of an arbitrary piece of code automatically (the proof is a reduction from the halting problem). However, there are tools that can attempt to measure the complexity of a piece of code empirically by running it on several different inputs. One … Read more
How do you create a REST client for Java?
This is an old question (2008) so there are many more options now than there were then: Apache CXF has three different REST Client options Jersey (mentioned above). Spring RestTemplate superceded by Spring WebClient Commons HTTP Client build your own for older Java projects. UPDATES (projects still active in 2020): Apache HTTP Components (4.2) Fluent … Read more
Downloading a file from spring controllers
Generally speaking, when you have response.getOutputStream(), you can write anything there. You can pass this output stream as a place to put generated PDF to your generator. Also, if you know what file type you are sending, you can set
Align printf output in Java
You can try the below example. Do use ‘-‘ before the width to ensure left indentation. By default they will be right indented; which may not suit your purpose. Format String Syntax: http://docs.oracle.com/javase/7/docs/api/java/util/Formatter.html#syntax Formatting Numeric Print Output: https://docs.oracle.com/javase/tutorial/java/data/numberformat.html PS: This could go as a comment to DwB’s answer, but i still don’t have permissions to … Read more