Joe's budget constraint equals 500 = 2F + 100S, where $500 is Joe's income, $2 is the price of food (F) and $100 is the price of shelter (S). How much food can Joe buy if he buys one unit of shelter?
【简答题】Complete the definition of the member function in the following class. #include #include using namespace std; class str {private: char *st; public: str(char *a) {set(a); } str & operator=(____) {delet...
【简答题】public class Program { public static void main(String[] args) { String A = new String("java"); StringBuffer B = new StringBuffer("java"); st(A); sb(B); System.out.println(A); System.out.println(B); } ...
【简答题】public class StaticTest {static int x = 1;int y;static {x++;}StaticTest() {x++;y++;}public static void main(String args[]) {StaticTest st = new StaticTest();System.out.println("st.x=" + st.x);System.o...
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【简答题】7 阅读程序,写出运行结果 class Student{ String stuName=" 学生 "; static int No=0; public Student() {No++; System. out .println(stuName+No);} public Student( int a) {No=a; System. out .println(stuName+a);} public v...