java正規表示式應用的例項程式碼

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String str = “n1e你v00a?Az$Z000?#99?9900眯2_悄s3你[email protected]好?!6求救你d75a8t”;
Pattern p= Pattern.compile(“[\u4e00-\u9fa5]”);//把漢字擷取出來。
Matcher m= p.matcher(str);
while(m.find()){
System.out.print(m.group());
}

String str = “n1e你v00a?Az$Z000?#99?9900眯2_悄s3你[email protected]好?!6求救你d75a8t”;
String a = “”;
String b = “”;
String d = “”;
String s = “”;
for(int i = 0;i<str.length();i ){
char c = str.charAt(i);
if(48<=c && c<=58){
a =c;
} else if(64<=c && c<=91){
b =c;
}else if(96<=c && c<=123){
b =c;
}else{
if(((String.valueOf(c)).getBytes().length)>1){
d =c;
}else{
s =c;
}
}

}
System.out.println(a);
System.out.println(b);
System.out.println(d);
System.out.println(s);

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