正则表达式|java正则表达式提取需要的字符并放入数组;ArrayList数组去重复

/*1.java正则表达式提取需要的字符并放入数组;
*2.ArrayList数组去重复
*
*
*
*
*
*
*
*/

package com.test.tool; import java.util.ArrayList; import java.util.HashSet; import java.util.regex.*; public class MatchTest { public static void main(String[] args) {String regex = "[0-9]{5,12}"; String input = "QQ120282458,QQ120282458 QQ125826"; Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); ArrayList al=new ArrayList(); while (m.find()) {al.add(m.group(0)); } System.out.println("去除重复值前"); for (int i=0; i

输出结果为:
【正则表达式|java正则表达式提取需要的字符并放入数组;ArrayList数组去重复】去除重复值前
120282458
120282458
125826
去除重复值后
125826
120282458


改进版:弄成一个bean:


/*1.提取需要的字符并放入数组; *2.ArrayList数组去重复 * * * * * * * */package com.test.tool; import java.util.ArrayList; import java.util.HashSet; import java.util.regex.*; public class MatchTest { private String regex; private String input; private ArrayList al; public String getRegex() { return regex; } public void setRegex(String regex) { this.regex = regex; } public String getInput() { return input; } public void setInput(String input) { this.input = input; } public ArrayList getAl() { return al; } public void setAl(ArrayList al) { this.al = al; } public MatchTest(String regex,String input) { Pattern p=Pattern.compile(regex); Matcher m=p.matcher(input); ArrayList myal=new ArrayList(); while (m.find()) { myal.add(m.group()); } HashSet hs=new HashSet(myal); myal.clear(); myal.add(hs); this.setRegex(regex); this.setInput(input); this.setAl(myal); } public MatchTest(){} public static void main(String[] args){ String regex1 = "[0-9]{5,12}"; String input1="QQ120282458,QQ120282458 QQ125826"; //String input1="QQ"; MatchTest mt=new MatchTest(regex1,input1); for (int i=0; i





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