java 判断字符串是否包含子串的方法

方法一: 

 String  str1  =  "nihaoksdoksad ";
 String  str2  =  "ok ";
 int  total  =  0;
 for  (String  tmp  =  str1;  tmp  !=  null&&tmp.length()> =str2.length();){
  if(tmp.indexOf(str2)  ==  0){
    total  ++;
  }
  tmp  =  tmp.substring(1);
}
System.out.println(str1+ "中含有 "+total+ "个 "+str2);

方法二: 

String  str1  =  "nihaokokosdokosad ";
String  str2  =  "oko ";
int  total  =  0;
for  (String  tmp  =  str1;  tmp  !=  null&&tmp.length()> =str2.length();){
  if(tmp.indexOf(str2)  ==  0){
    total  ++;
    tmp  =  tmp.substring(str2.length());
  }else{
    tmp  =  tmp.substring(1);
  }
}
System.out.println(str1+ "中含有 "+total+ "个 "+str2);

 方法三:

String  str1  =  "nihaoksdoksad ";
char  []c=str1.toCharArray();
int  total=0;
for(int  i=0;i <c.length-1;i++)
if(c[i]== 'o '&&c[i+1]== 'k ')
total++;
System.out.println(str1+ "中含有 "+total+ "个ok ");

 以上就是java 字符串判断是否含有子串的方法,如有疑问请留言或者到本站社区交流讨论,感谢阅读,希望能帮助到大家,谢谢大家对本站的支持!

02-04 00:11