找出多组分辨率中最接近目标值的一组_多组数据找出最近目标值的实际应用-优快云博客

文章描述了一个Java程序，它从给定的屏幕分辨率列表中找到与指定宽度和高度最接近的分辨率。通过解析字符串，创建Resolution对象并计算与目标值的差距，最后输出最接近的分辨率数据。

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package com.test;

import java.util.ArrayList;
import java.util.List;

public class Test {
	
	public static void main(String[] args) {
		
		// 目标分辨率
		int targetWidth = 640;
		int targetHeight = 480;
		
		//String str = "3264x2448,3264x1836,2560x1920,3264x1472,3200x1440,2304x1728,2560x1440,1920x1920,2048x1536,2304x1296,1920x1440,2400x1080,1920x1080";
		String str = "2560x1920,3264x1472,3200x1440,2304x1728,2560x1440,1920x1920,2048x1536,2304x1296,1920x1440,2400x1080,2304x1040,1920x1080,1632x1224,1600x1200,1440x1080,1280x960,1088x1088,1600x720,1280x720,960x540,800x600,800x480,720x480,352x288,320x240,176x144";
		
		String[] ary1 = str.split(",");
		List<String> list = new ArrayList<String>();
		
		for (int i = 0; i < ary1.length; i++) {
			String sss = ary1[i];
			list.add(sss);
		}
		
		//获取和目标值最接近的一组分辨率
		String s = getBestResolution(list,targetWidth,targetHeight);
		
		// 输出最接近目标分辨率的数据
		System.out.println("最接近目标分辨率的数据为："+s);
		
	}

	/**
	 * 	获取和目标值最接近的一组分辨率
	 * @param list 分辨率集合，例如：[960x540,800x600,800x480,720x480,352x288,320x240,176x144]
	 * @param targetWidth 目标分辨率宽，例如：640
	 * @param targetHeight 目标分辨率高，例如：480
	 * @return 和目标值最接近的一组分辨率，例如：720x480
	 */
	public static String getBestResolution(List<String>list,int targetWidth,int targetHeight) {
		// 数据集合
		List<Resolution> resolutions = new ArrayList<Resolution>();
		
		for (int i = 0; i < list.size(); i++) {
			String sss = list.get(i);
			String[] ary2 = sss.split("x");
			Resolution resolution = new Resolution(Integer.parseInt(ary2[0]), Integer.parseInt(ary2[1]));
			resolutions.add(resolution);
		}
		
		// 初始化最小差距为最大值
		int minDifference = Integer.MAX_VALUE;
		Resolution closestResolution = null;

		// 遍历数据集合，找到最接近目标分辨率的数据
		for (Resolution resolution : resolutions) {
			int difference = Math.abs(resolution.width - targetWidth) + Math.abs(resolution.height - targetHeight);
			if (difference < minDifference) {
				minDifference = difference;
				closestResolution = resolution;
			}
		}
		String res = String.format("%dx%d",closestResolution.width,closestResolution.height);
		return res;
	}

	// 分辨率类
	static class Resolution {
		int width;
		int height;

		public Resolution(int width, int height) {
			this.width = width;
			this.height = height;
		}
	}
}

输出结果

最接近目标分辨率的数据为：720x480