哪些 Java 声明使用了课程中介绍的 long 和 float 字面量后缀？
long
float
long count = 'L'; 和 float rate = true;
long count = 'L';
float rate = true;
long count = 9000000000000000000L; 和 float rate = 3.14f;
long count = 9000000000000000000L;
float rate = 3.14f;
long count = "9000000000000000000L"; 和 float rate = "3.14f";
long count = "9000000000000000000L";
float rate = "3.14f";
long count = 9000000000000000000f; 和 float rate = 3.14L;
long count = 9000000000000000000f;
float rate = 3.14L;