1Z0-803 Practice Questions

Given the code fragment: What is the result?

Given the following code: What will make this code compile and run?

Given: What is the result?

You are writing a method that is declared not to return a value. Which two are permitted in the method body?

Identify two benefits of using ArrayList over array in software development.

Which three are valid types for switch?

Give: What value should replace KK in line x to cause jj = 5 to be output?

Given the following code fragment: What is the result if the integer value is 33?

Given the code fragment: Int [] [] array = {{0}, {0, 1}, {0, 2, 4}, {0, 3, 6, 9}, {0, 4, 8, 12, 16}}; Systemout.printIn(array [4] [1]); System.out.printIn (array) [1][4]); int [] [...

Given: How many times is 2 printed as a part of the output?

Given: Which line causes a compilation error?

Given: What is the result?

Given: Which approach ensures that the class can be compiled and run?

Given: What is the result?

Which declaration initializes a boolean variable?

Given: Why will the code not compile?

Given: This class is poorly encapsulated. You need to change the circle class to compute and return the area instead. What three modifications are necessary to ensure that the clas...

Given a code fragment: What is the result?

Which two are possible outputs? public class Two { public static void main(String[] args) { try { doStuff(); system.out.println("1"); } catch { system.out.println("2"); }} public s...

Given: public class MyFor { public static void main(String[] args) { for (int ii = 0; ii < 4; ii++) { System.out.println("ii = "+ ii); ii = ii +1; } } } What is the result?

Given the code fragment: int [][] array2d = new int[2][3]; System.out.println("Loading the data."); for ( int x = 0; x < array2d.length; x++) { for ( int y = 0; y < array2d[0].leng...

Given: public class DoBreak1 { public static void main(String[] args) { String[] table = {"aa", "bb", "cc", "dd"}; for (String ss: table) { if ( "bb".equals(ss)) { continue; } Syst...

Which three lines are illegal? 1. class StaticMethods { 2. static void one() { 3. two(); 4. StaticMethods.two(); 5. three(); 6. StaticMethods.four(); 7. } 8. static void two() { }...

Which is a valid abstract class?

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

Given the code fragment: String name = "Spot"; int age = 4; String str ="My dog " + name + " is " + age; System.out.println(str); And StringBuilder sb = new StringBuilder(); Using...

Given: public class Main { public static void main(String[] args) { try { doSomething(); } catch (SpecialException e) { System.out.println(e); }} static void doSomething() { int []...

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

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

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 emoty the contents of a StringBuilder variable named sb?

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

Which two are valid array declaration?

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...

Given: public class MainMethod { void main() { System.out.println("one"); } static void main(String args) { System.out.println("two"); } public static void main(String[] args) { Sy...

Given: public class ScopeTest { int j, int k; public static void main(String[] args) { ew ScopeTest().doStuff(); } void doStuff() { nt x = 5; oStuff2(); 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[] arrar = {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"); }{ 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<>(1); 2. list.add(1001); 3. list.add(1002); 4. System.out.println(list.get(list.size())); What is the result?

Given the code fragment: Which code fragment prints blue, cyan, ?

View the Exhibit. 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...