1Z0-808 Exam Questions

QUESTION 62 Given the code fragment from three files: SalesMan.java: package sales; public class SalesMan { } Product.java: package sales.products; public class Product { } Market....

Given the code fragment: String shirts[][] = new String[2][2]; shirts[0][0] = "red"; shirts[0][1] = "blue"; shirts[1][0] = "small"; shirts[1][1] = "medium"; Which code fragment pri...

Given the code fragment: public static void main(String[] args) { StringBuilder sb = new StringBuilder(5); String s = ""; if (sb.equals(s)) { System.out.println("Match 1"); } else...

package p1; public class Acc { int p; private int q; protected int r; public int s; } Test.java: package p2; import p1.Acc; public class Test extends Acc { public static void main(...

Given the code fragment: public static void main(String[] args) { ArrayList myList = new ArrayList(); String[] myArray; try { while (true) { myList.add("My String"); } } Catch (Run...

Given: System.out.println("5 + 2 = " + 3 + 4); System.out.println("5 + 2 = " + (3 + 4)); What is the result?

Given: public static void main(String[] args) { String ta = "A"; ta = ta.concat("B"); String tb = "C"; ta = ta.concat(tb); ta.replace('C', 'D'); System.out.println(tb); System.out....

Given the code fragment: 3. public static void main(String[] args) { 4. int x = 5; 5. while (isAvailable(x)) { 6. System.out.print(x); 7. } 8. } 9. 10. public static boolean isAvai...

Given the code fragment: 4. public static void main(String[] args) { 5. boolean opt = true; 6. switch (opt) { 7. case true: 8. System.out.print("True"); 9. break; 10. default: 11....

Given the following main method: public static void main(String[] args) { int num = 5; do { System.out.print(num-- + " "); } while (num == 0); } What is the result?

Given the code fragment: int x = 100; int a = x++; int b = ++x; int c = x++; int d = (a < b) ? (a < c) ? a : (b < c) ? b : c; System.out.println(d); What is the result?

Given: public class Test { public static void main(String[] args) { String[][] chs = new String[2][]; chs[0] = new String[2]; chs[1] = new String[5]; int i = 97; for (int a = 0; a...

Given the exhibit: public class Student { public String name = ""; public int age = 0; public String major = "Undeclared"; public boolean fulltime = true; public void display() { S...

What should keyword1 and keyword2 be respectively, in order to produce output 2345? int [] array = {1,2,3,4,5}; for (int i: array) { if (i < 2) { keyword1 ; } System.out.println(i)...

What is the result? int i, j=0; i = (3 * 2 +4 +5) ; j = (3 * ((2+4) + 5)); System.out.println("i:" + i + "\nj:" +j);

What is the result? boolean log3 = ( 5.0 != 6.0) && ( 4 != 5); boolean log4 = (4 != 4) || (4 == 4); System.out.println("log3:" + log3 + "\nlog4:" + log4);

Which statement will empty the contents of a StringBuilder variable named sb?

What is the result? class StaticField { static int i = 7; public static void main(String[] args) { StaticField obj = new StaticField(); obj.i++; StaticField.i++; obj.i++; System.ou...

Given: class Overloading { int x(double d) { System.out.println("one"); return 0; } String x(double d) { System.out.println("two"); return null; } double x(double d) { System.out.p...

public static void main(String[] args) { System.out.println("three"); } void mina(Object[] args) { System.out.println("four"); } What is printed out when the program is executed?

Given: public class ScopeTest { int j, int k; public static void main(String[] args) { ew ScopeTest().doStuff(); } void doStuff() { int x = 5; doStuff2(); System.out.println("x");...

A method is declared to take three arguments. A program calls this method and passes only two arguments. What is the results?

Which three are valid replacements for foo so that the program will compiled and run? public class ForTest { public static void main(String[] args) { int[] array = {1,2,3}; for ( f...

Given: public class SampleClass { public static void main(String[] args) { AnotherSampleClass asc = new AnotherSampleClass(); SampleClass sc = new SampleClass(); sc = asc; System.o...

Given the code fragment: int b = 3; if ( (b > 3) ) { System.out.println("square"); } else { System.out.println("circle"); } System.out.println("..."); What is the result?

What is the proper way to defined a method that take two int values and returns their sum as an int value?

Which two are Java Exception classes?

Given the for loop construct: for ( expr1 ; expr2 ; expr3 ) { statement; } Which two statements are true?

What is the result? public class StringReplace { public static void main(String[] args) { String message = "Hi everyone!"; System.out.println("message = " + message.replace("e", "X...

Which two statements are true for a two-dimensional array?

Which three statements are benefits of encapsulation?

Given the code fragment: 1. ArrayList<Integer> list = new ArrayList<>(); 2. list.add(1001); 3. list.add(1002); 4. System.out.println(list.get(list.size())); What is the result?

public class Hat { public int ID =0; public String name = "hat"; public String size = "One Size Fit All"; public String color=""; public String getName() { return name; } public vo...

Which code fragment cause a compilation error?

Given: class X { static void m (int[] i) { i[0] += 7; } public static void main (String[] args) { int[] j = new int[1]; j[0] = 12; m(j); System.out.println(j[0]); } } What is the r...

Given: 1. public class SampleClass { 2. public static void main (String[] args) { 3. AnotherSampleClass asc = new AnotherSampleClass(); 4. SampleClass sc = new SampleClass(); 5. //...

Given: public class MarksOutOfBoundsException extends IndexOutOfBoundsException { } public class GradingProcess { void verify(int marks) throws IndexOutOfBoundsException { if (mark...

Given: 1. interface Pet { } 2. class Dog implements Pet { } 3. class Beagle extends Dog { } Which three are valid?

Given the code fragment: StringBuilder sb = new StringBuilder(); sb.append("World"); Which fragment prints Hello World?

Given: package pkg1; class Bb {} public class Ee { private Ee () {} } package pkg2; final class Ww; package pkg3; public abstract class Dd { void m() { } } And, 1. package pkg4; 2....

Change line 5 to:

Given the code fragment: Which statement is true? ```java Class Student { String name; int age; } And, 1. public class Test { 2. public static void main(String[] args) { 3. Student...

Given: ```java public class Test { public static void main(String[] args) { char[] arr = {97, 't', 'e', '\n', 'i', '\t', 'o'}; for (char var: arr) { System.out.print(var); } System...

Given the class definitions: ```java class Shape { } class Square extends Shape { } ``` Given the variable declarations: ```java Shape shape1 = null; Square square1 = null; ``` Whi...

Given the code fragments: ```java 9. class Student { 10. int rollnumber; 11. String name; 12. List<String> courses = new ArrayList<>(); 13. // insert code fragment here 14. public...

Given: ```java public class Test2 { public static void main(String[] args) { int ar1[] = {2, 4, 6, 8}; int ar2[] = {1, 3, 5, 7, 9}; int ar3[] = ar1; for (int e2 : ar2) { System.out...

Given: ```java public class Test2 { public static void doChange(int[] arr) { for (int pos = 0; pos < arr.length; pos++){ arr[pos] = arr[pos] + 1; } } public static void main(String...

Which two are valid declarations of a two-dimensional array?

Given the following Java code: public class CheckIt { public static void main (String[] args) { if (doCheck()) { System.out.print("square "); } System.out.print("..."); } public st...