5.9-2比较str1和str2截取后的子串

package zfc;

public class ZfcShcq {

    public static void main(String[] args) {
        // TODO Auto-generated method stub

        String str1 = "Hello World !";//创建两个字符串
        String str2 = "Oracle Java";
        
        String s1 = str1.substring(7,9);//分别截取子串
        String s2 = str2.substring(0,2);
        
//        System.out.println(s1);//用于调试，查看子串
//        System.out.println(s2);
        
        if(s1.equalsIgnoreCase(s2))//比较子串，不区分大小写
        {
            System.out.println("两个子串相同");
        }
        else
        {
            System.out.println("两个子串并不相同");
        }
                
        
        }

}