java截取字符串

[zyf_xl]

用户输入(参数随机乱输) 例如:lkajsdf lkajsdf 846654 d7777 uiqoe
我要得到含有d的那个单词,如果有多个单词以|分割
输出:lkajsdf|lkajsdf|d7777

[ftgreat]

2楼写得相当美妙！

[finalzhzhk]

mark it
:)
提个小小的建议:
通过StringBuffer整合要得到的字符串就更好了

[cljspn]

　　　　　　　　　String str = "lkajsdf lkajsdf 846654 d7777 uiqoe" ;
String[] strArray = str.split(" ");
StringBuffer strBuffer = new StringBuffer();
for (int i = 0; i < strArray.length; i++) {
if (strArray[i].indexOf("d")>=0) {
strBuffer.append(strArray[i]+"|");
}
}
System.out.println(strBuffer.toString());

[cljspn]

　　　String str = "lkajsdf lkajsdf 846654 d7777 uiqoe" ;
		String[] strArray = str.split(" ");
		StringBuffer strBuffer = new StringBuffer();
		for (int i = 0; i < strArray.length; i++) {
			if (strArray[i].indexOf("d")>=0) {
				strBuffer.append(strArray[i]+"|");
			}
		}
		System.out.println(strBuffer.toString());

[fastid]

真得好好学学了！

有啥学正则的好方法吗？

[lip009]

1.JAVA代码

		String str="lkajsdf   lkajsdf   846654   d7777   uiqoe";
		Pattern pattern=Pattern.compile("(\\S*d\\S*)");
		Matcher matcher=pattern.matcher(str);
		String string="";
		while(matcher.find()){
			string=string+matcher.group(1)+"|";
		}
		System.out.println(string);

[lip009]

1.JavaScript脚本

var str="lkajsdf   lkajsdf   846654   d7777   uiqoe";
var string="";
str.replace(/(\S*d\S*)/g,function($1,$2){
	string=string+$2+"|";
});
alert(string);

2.JAVA代码

		String str="lkajsdf   lkajsdf   846654   d7777   uiqoe";
		Pattern pattern=Pattern.compile("(\\S*d\\S*)");
		Matcher matcher=pattern.matcher(str);
		String string="";
		while(matcher.find()){
			string=string+matcher.group(1)+"|";
		}
		System.out.println(string);

[lilifb]

2楼的很强悍

[zyf_xl]

有字符串`(用户输的参数,比如:lkjsdf!#jsdfl65ADASD $%^)
计算出有几个是有效字符,有几个数字,和几个空格,有几个字母(不区分大小写)

不是截取`是得到他们分别的个数

[plucury]

我也试试吧

import java.util.*;
import java.util.regex.*;
public class test {
	public static void main(String[] args){
		Scanner in=new Scanner(System.in);
		String pattern="\\S*[dD]\\S*";
		while(true){
			if(in.hasNext(pattern)){
				in.next(pattern);
				MatchResult match=in.match();
				System.out.print(match.group()+"|");
			}
			else{
				in.next();
			}
		}
	}
}