| 6.样例
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
public class Regular {
//字符串是否是数字
staticString regexIsDigital =“d+”;//字符串是否是字母 regexIsAlpha =”p{Alpha}+”;//字符串是否是15位或18位的身体证号码 regexIsID{15}|18}”;//字符串是否是JJJ开头KKK结尾 regexIsJJJStartKKKEnd=”^JJJ.*KKK$”;//字符串是否是区号是3或4位数字-(可有可没有)号码任意多少位的数字 regexIsTelePhoneNumber =”[0-9]{3,4}-?[]+”;//X@X.com.cn regexIsEmail w+@+(.2})*.//字符串是否是汉字 regexIsHanZi=”[u4e00-u9fa51//查找以Java开头,任意结尾的字符串 regexIsStartJava “^Java.*”;//以多条件分割字符串时 regexSplit =”[,|]+”;
void main(String[] args)
testIsDigit();
testIsAlpha
testIsID
testStartEnd
testIsTelePhoneNum
testEmailAddre
testIsHanZi
testIsStartJava
testSplit
testReplace
testPattern
}
private testPattern()
Pattern pattern Pattern.compile("");System.outprintln(patternmatches"[0-9]{6}" "200038"));
"d{6}"
testReplace"正则表达式"Matcher matcher patternmatcher"正则表达式 Hello World,正则表达式 Hello World"
//替换第一个符合正则的数据replaceFirst"Java"
pattern
matcher
//替换所有符合正则的数据 replaceAll
testSplitregexSplit data "Java Hello World Java,Hello,World|Sun";data+" split by:" strs split
for(int i=i<strslength++)
[]);
testIsStartJava
pressInfoByPattern"Java不是人"regexIsStartJava
pressInfoByPattern"dJava不是人" testIsHanZi
pressInfo"验证汉字"regexIsHanZi testIsTelePhoneNum"0733-5544"regexIsTelePhoneNumber"073-566544""073566544""073--566544" testStartEnd"JJJKKK"regexIsJJJStartKKKEnd"JJJaaaaKKK"
pressInfo"JJaaaaKKK""JJJaaaaKK" testIsID
pressInfo"222222222222222"regexIsID"22222222221111"
pressInfo"222222222211122221""22222222221112222"
testIsAlpha"da"regexIsAlpha"d1a" testIsDigit
pressInfo"21452"regexIsDigital"21a452""021452" testEmailAddre
pressInfo"aaa@"regexIsEmail"aaaaaaaa""22222@22222fffyu.dfg.com"
pressInfo data regex
ifregex)){":is match regex:"}else":is not match regex:" pressInfoByPattern
()){}
（编辑：李大同）
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