compare

I need to compare two dates in java. I am using the code like this: Date questionDate = question.getStartDate(); Date today = new Date(); if(today.equals(questionDate)){ System.out.println("Both are equals"); } This is not working. The content of the variables is the following: questionDate contains 2010-06-30 00:31:40.0 today contains Wed Jun 30 01:41:25 IST 2010 How can I resolve this? Eric Hauser Date equality depends on the two dates being equal to the millisecond. Creating a new Date object using new Date() will never equal a date created in the past. Joda Time 's APIs simplify working

As part of a compiler project I have to write GNU assembler code for x86 to compare floating point values. I have tried to find resources on how to do this online and from what I understand it works like this: Assuming the two values I want to compare are the only values on the floating point stack, then the fcomi instruction will compare the values and set the CPU-flags so that the je , jne , jl , ... instructions can be used. I'm asking because this only works sometimes. For example: .section .data msg: .ascii "Hallo\n\0" f1: .float 10.0 f2: .float 9.0 .globl main .type main, @function main:

So I've got two CSV files that I'm trying to compare and get the results of the similar items. The first file, hosts.csv is shown below: Path Filename Size Signature C:\ a.txt 14kb 012345 D:\ b.txt 99kb 678910 C:\ c.txt 44kb 111213 The second file, masterlist.csv is shown below: Filename Signature b.txt 678910 x.txt 111213 b.txt 777777 c.txt 999999 As you can see the rows do not match up and the masterlist.csv is always larger than the hosts.csv file. The only portion that I'd like to search for is the Signature portion. I know this would look something like: hosts[3] == masterlist[1] I am

I basically want to take two images taken from the camera on the iPhone or iPad 2 and compare them to each other to see if they are pretty much the same. Obviously due to light etc the image will never be EXACTLY the same so I would like to check for around 90% compatibility. All the other questions like this that I saw on here were either not for iOS or were for locating objects in images. I just want to see if two images are similar. Thank you. aroth As a quick, simple algorithm, I'd suggest iterating through about 1% of the pixels in each image and either comparing them directly against

How do I compare version numbers? For instance: x = 1.23.56.1487.5 y = 1.24.55.487.2 Can you use the Version class? http://msdn.microsoft.com/en-us/library/system.version.aspx It has an IComparable interface. Be aware this won't work with a 5-part version string like you've shown (is that really your version string?). Assuming your inputs are strings, here's a working sample with the normal .NET 4-part version string: static class Program { static void Main() { string v1 = "1.23.56.1487"; string v2 = "1.24.55.487"; var version1 = new Version(v1); var version2 = new Version(v2); var result =

本文将介绍 Java 8 新增的 Lambda 表达式，包括 Lambda 表达式的常见用法以及方法引用的用法，并对 Lambda 表达式的原理进行分析，最后对 Lambda 表达式的优缺点进行一个总结。 1. 概述 Java 8 引入的 Lambda 表达式的主要作用就是简化部分的写法。 能够使用 Lambda 表达式的一个重要依据是必须有相应的 函数接口 。所谓函数接口，是指内部有且仅有一个抽象方法的接口。 Lambda 表达式的另一个依据是 类型推断机制 。在上下文信息足够的情况下，编译器可以推断出参数表的类型，而不需要显式指名。 2. 常见用法 2.1 无参函数的简写 无参函数就是没有参数的函数，例如 Runnable 接口的 run() 方法，其定义如下： @FunctionalInterface public interface Runnable { public abstract void run(); } 在 Java 7 及之前版本，我们一般可以这样使用： new Thread(new Runnable() { @Override public void run() { System.out.println("Hello"); System.out.println("Jimmy"); } }).start(); 从 Java 8 开始