Những câu hỏi về Java(Trắc Nghiệm Đại Học Lạc Hồng)

Câu 1:  what are NOT the valid components of a Java source file (choose all that apply):
A: Package statement.
B: Import statements.
C: Methods and variables.
D: Java compiler and Java Runtime Environment.
Câu 2: The following numbered list of Java class components is not in any particular order. Select the INCORRECT order of their occurrence in a Java class (choose all that apply):
    1. comments
    2. import statement
    3. package statement
    4. methods
    5. class declaration.
    6. variables

A: 1,3,2,5,6,4
B: 3,1,2,5,4,6
C: 3,2,1,4,5,6
D: 3,2,1,5,6,4

Câu 3: Which of the following examples define the CONRRECT Java class Structure?

A: #connect java compiler;
     #connect java virtual machine;
     class RJavaGuru{}
B: package java compiler;
     import java virtual machine;
     class EJavaGuru{}
C: import javavirtualmachine.*;
     package javacompiler;
     class EJavaGuru
     {
                void method1(){
                int count;
      }
D: package javacompiler;
     import javavirtualmachine.*;



Còn Tiếp: KrishPham