Oracle 1Z0-850 Online Practice Questions and Exam Preparation

Oracle 1Z0-850 Online Questions & Answers

• Question 111:

  Which two correctly import the Map class in the java.util package? (Choose two.)

  A. import *.Map;
  B. package java.util.Map;
  C. import Map;
  D. import java.util.Map;
  E. package java.util.*;
  F. import java.util;
  G. import java.util.*;
  D. import java.util.Map;
  G. import java.util.*;

• Question 112:

  Given:

  17. class B { }

  Which demonstrates inheritance?

  A. class A this B { }
  B. class A extends B { }
  C. class A super B { }
  D. class A implements B { }
  B. class A extends B { }

• Question 113:

  Given:

  17. class B { }

  Which demonstrates inheritance?

  A. class A extends B { }
  B. class A this B { }
  C. class A super B { }
  D. class A implements B { }
  A. class A extends B { }

• Question 114:

  Given:

  1.

  class Test {

  2.

  public static void main(String[] args) {

  3.

  int num = 1;

  4.

  for (num = 0; num < 3; ++num ) {

  5.

  num *= 2;

  6.

  }

  7.

  System.out.println("num = " + (num++));

  8.

  }

  9.

  }

  What is the result?

  A. num = 2
  B. num = 4
  C. num = 3
  D. num = 5
  E. Compilation fails.
  C. num = 3

• Question 115:

  Which is NOT a correct statement about entity beans?

  A. They are persisted using BMP and CMP.
  B. They are used to share data among clients.
  C. They are used to store persistent data.
  D. They are used to implement business processes.
  E. They are used to represent data stored in an RDBMS.
  D. They are used to implement business processes.

• Question 116:

  Which package contains the classes used to create a socket?

  A. javax.swing
  B. java.io
  C. java.util
  D. java.net
  E. java.awt
  F. java.lang
  D. java.net

• Question 117:

  Which option will correctly initialize the property com.example.property to someValue when invoking java?

  A. com.example.property=someValue
  B. -Pproperty:someValue
  C. -P com.example.property someValue
  D. -Pcom.example.property:someValue
  E. -Dcom.example.property=someValue
  E. -Dcom.example.property=someValue

• Question 118:

  Which correctly declares a class Test in package com.example?

  A. package com.example {class Test {// some code here}
  B. package com.example;public class Test {// some code here}
  C. public class com.example.Test {// some code here}
  D. import com.example;public class Test {// some code here}
  B. package com.example;public class Test {// some code here}

• Question 119:

  Which Java technology provides a standard API for relational database access?

  A. JDC
  B. JMS
  C. JSP
  D. JNDI
  E. JDBC
  E. JDBC

• Question 120:

  Given:

  4.

  int n1 = 22, n2 = 67, n3 = 0, n4 = 47, n5 = 17, n6 = 50;

  5.

  boolean b = true;

  Which three evaluate to true? (Choose three.)

  A. !(n1 < n3) andand (n5 != n4)
  B. (!b) andand (n1
  C. (n2 > n6) || b
  D. (n2 < n6) andand (n4 >= n1)
  E. (n3 < n5) || (n2
  A. !(n1 < n3) andand (n5 != n4)
  C. (n2 > n6) || b
  E. (n3 < n5) || (n2