java 判斷字元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+ "個 "+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+ "個 "+str2);
方法三:
String str1 = "nihaoksdoksad ";
char []c=str1.toCharArray();
int total=0;
for(int i=0;i
if(c[i]== 'o '&&c[i+1]== 'k ')
total++;
System.out.println(str1+ "中含有 "+total+ "個ok ");
以上就是java 字元串判斷是否含有子串的方法,如有疑問請留言或者到本站社群交流讨論,感謝閱讀,希望能幫助到大家,謝謝大家對本站的支援!