s1.contains(s2) 方法可以
package com.yiibai;
import java.lang.*;
public class StringDemo {
public static void main(String[] args) {
String str1 = "tutorials point", str2 = "
http://"; CharSequence cs1 = "int";
// string contains the specified sequence of char values
boolean retval = str1.contains(cs1);
System.out.println("Method returns : " + retval);
// string does not contain the specified sequence of char value
retval = str2.contains("_");
System.out.println("Methods returns: " + retval);
}
}
输出结果:
Method returns : true (包含)
Methods returns: false (不包含)