我是哪里错了
int a=16;
double b=9.5;
String str1="hello";
String str2="imooc";
System.out.println("a等于b:" + (a == b));
System.out.println("a大于b:" + (a > b));
System.out.println("a小于等于b:" + (a <= b));
System.out.println("str1等于str2:" + (str1 == str2));
}public class HelloWorld{ ) {
}