Question

java中判断一串字符串是否含有字符

Answer 1

public class IndexOfTest {

public static void main(String[] args) {
// TODO Auto-generated method stub
String str = "I love china,my motherland!";

int result1 = str.indexOf("china");
int result2 = str.indexOf("chinese");

if(result1 != -1){
System.out.println("字符串str中包含子串“china”"+result1);
}else{
System.out.println("字符串str中不包含子串“china”"+result1);
}

if(result2 != -1){
System.out.println("字符串str中包含子串“chinese”"+result2);
}else{
System.out.println("字符串str中不包含子串“chinese”"+result2);
}
}

}