问答题
本程序判断一个字符串"Tom"是否在另外一个字符串"I am Tom, I am from China."中出现。
public class exam_38{
public static void main(String[] args){
______;
str1=:I am Tom, I am from China.";
str2="Tom";
int i=______;
if(______)
System.out.println("""+str2+""is in the string:""+str1+""");
else
System.out.println("""+str2+""is not in the string:""+str1+""");
}
}