int count=0; String str = "apple"; String s = "This apple is a red apple"; int index = s.indexOf(str); while(index != -1) { count++; s = s.substring(index + str.length()); index =s.indexOf("apple"); } System.out.println(count);
String s = "This apple is a red apple"; Stirng s1 = "apple"; int index = -1; while((index = s.indexOf(s1))!=-1) { count++; s = s.substring(index + s1.length());
String str = "This apple is a red apple"; Stirng s = "apple"; int index = -1; while((index = str.indexOf(s))!=-1) { count++; str = str.substring(index + s.length());
上面贴少了。String str="apple This apple is a red apple"; String[] strArrage=str.split("apple"); int wordNumb=strArrage.length -1; if(str.endsWith("apple")) wordNumb++;
上面贴少了。String str="apple This apple is a red apple"; String[] strArrage=str.split("apple"); int wordNumb=strArrage.length -1; if(str.endsWith("apple")) wordNumb++;
public class CountIt { public static void main (String args []) { int count = 0; String s = "apple"; String str = "This apple is a red apple that LZ gives me!"; int index = 1; while (index!=-1) {
String str = "apple";
String s = "This apple is a red apple";
int index = s.indexOf(str);
while(index != -1) {
count++;
s = s.substring(index + str.length());
index =s.indexOf("apple");
}
System.out.println(count);
String s = "This apple is a red apple";
Stirng s1 = "apple";
int index = -1;
while((index = s.indexOf(s1))!=-1) {
count++;
s = s.substring(index + s1.length());
}
System.out.println(count);
推荐你去看一下马士兵老师的视频 里面讲得不错 我也是初学者 呵呵 加油哈!!
Stirng s = "apple";
int index = -1;
while((index = str.indexOf(s))!=-1) {
count++;
str = str.substring(index + s.length());
}
System.out.println(count);
多看java文档,里面有你不会和不知道的方法
顶4楼,但要完善下,如下:int wordNumb=strArrage.length -1;
if(str.endsWith("apple")) wordNumb++;
String[] strArrage=str.split("apple");
int wordNumb=strArrage.length -1;
if(str.endsWith("apple")) wordNumb++;
String[] strArrage=str.split("apple");
int wordNumb=strArrage.length -1;
if(str.endsWith("apple")) wordNumb++;
public static void main (String args []) {
int count = 0;
String s = "apple";
String str = "This apple is a red apple that LZ gives me!";
int index = 1;
while (index!=-1) {
str = str.substring(index + s.length());
index = str.indexOf(s);
count++;
}
System.out.println(count);
}}
split可以设置的s.split(subStr,-1).length-1;