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import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class comeoutNum {
public static int i = 0;
public static void printComeoutNum(String str){
String regEx = "cba"; //表示a或f
Pattern p = Pattern.compile(regEx);
Matcher m=p.matcher(str);
if(m.find()){
i ++;
}
System.out.println("cba出现的次数为:" + i);
}
public static void main(String []args){
String A = new String("cbasdffdgasdcba");
printComeoutNum(A);
}
}
public static void main(String[] args) {
String str= "qwertyuiopasdfghjklzxcvbnm1234567890";
// 以j打头的长度为2的字符!
String[] s=str.split("(j.{1})");
for(int i=0;i<s.length;i++){
// 出现次数为i
System.out.println(i);
}
}
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class comeoutNum {
public static int i = 0;
public static void printComeoutNum(String str){
String regEx = "cba"; //表示a或f
Pattern p = Pattern.compile(regEx);
Matcher m=p.matcher(str);
if(m.find()){
i ++;
}
System.out.println("cba出现的次数为:" + i);
}
public static void main(String []args){
String A = new String("sdffdgasdcfdsba");
printComeoutNum(A);
}
}