1Z0-850 무료 덤프문제 온라인 액세스

Which two are represented in a UML class diagram? (Choose two.)

• A.the interactions between objects in sequential order
• B.relationships between classes and interfaces
• C.ways to test an application
• D.operations of classes and interfaces

Given:
1 . class Test {
2 . public static void main(String args[]) {
3 . String str = "Hello!";
4 . String str2 = "Bye!";
5 . str += str2;
6 . str -= str2;
7 .
8 . if ( str == str2 ) {
9 . System.out.println("str = str2");
1 0. } else {
1 1. System.out.println("str != str2");
1 2. }
1 3. }
1 4. }
What is the result?

• A.str = str2
• B.The code runs with no output.
• C.Compilation fails.
• D.str != str2

Which two are associated with the web tier in a J2EE web-based application? (Choose two.)

• A.servlets
• B.JSP
• C.JMS
• D.JAX-RPC
• E.entity beans

Given:
1 . public class Boat{
2 . // insert code here
3 . public void setGas(int v){
4 . gas = v;
5 . }
6 . }
Which, inserted at line 2, is valid and demonstrates encapsulation?

• A.private int gas;
• B.public int gas;
• C.struct int gas;
• D.protected int gas;

Which two compile without error? (Choose two.)

• A.float f = 3.14;
• B.double d = 1000;
• C.boolean b = 0;
• D.char c = '\u0078';