题目内容

空间当中两直线垂直，其中一条直线为侧平线，那么它们的侧面投影互相垂直。

A. 对
B. 错

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Each time a method is invoked, the system stores parameters and local variables in an area of memory, known as _______, which stores elements in last-in first-out fashion.

A. an array
B. a heap
C. a stack
D. storage area

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Java allows you to declare methods with the same name in a class. This is called ________.

A. method redeclaration
B. method overloading
C. method overriding
D. method duplication

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Analyze the following code: public class Test {public static void main(String[] args) {System.out.println(xMethod(5, 500L));} public static int xMethod(int n, long l) {System.out.println("int, long");return n;} public static long xMethod(long n, long l) {System.out.println("long, long");return n;} }

A. The program does not compile because the compiler cannot distinguish which xmethod to invoke.
B. The program runs fine but displays things other than 5.
C. The program displays long, long followed by 5.
D. The program displays int, long followed by 5.

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Analyze the following code: class Test {public static void main(String[] args) {System.out.println(xmethod(5));} public static int xmethod(int n, long t) {System.out.println("int");return n;} public static long xmethod(long n) {System.out.println("long");return n;} }

A. The program displays long followed by 5.
B. The program displays int followed by 5.
C. The program does not compile because the compiler cannot distinguish which xmethod to invoke.
D. The program runs fine but displays things other than 5.

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空间当中两直线垂直，其中一条直线为侧平线，那么它们的侧面投影互相垂直。

A. 对 B. 错

Each time a method is invoked, the system stores parameters and local variables in an area of memory, known as _______, which stores elements in last-in first-out fashion.

Java allows you to declare methods with the same name in a class. This is called ________.

Analyze the following code: class Test {public static void main(String[] args) {System.out.println(xmethod(5));} public static int xmethod(int n, long t) {System.out.println("int");return n;} public static long xmethod(long n) {System.out.println("long");return n;} }

A. 对
B. 错