How to Pass the Oracle 1z0-809 Exam: Comprehensive Java SE 8 Programmer II Guide and Tips

Foo mark = new Foo (“Steve”, 100);

Foo pair = Foo.twice (“Hello World!”);

Foo percentage = new Foo(“Steve”, 100);

Foo grade = new Foo <> (“John”, “A”);

The method deletes all the .class files in the Projects directory and its subdirectories.

The method deletes the .class files of the Projects directory only.

The method executes and does not make any changes to the Projects directory.

The method throws an IOException.

{1007 = A, 1002 = C, 1001 = B, 1003 = B}

{1001 = B, 1002 = C, 1003 = B, 1007 = A}

{1002 = C, 1003 = B, 1007 = A}

{1007 = A, 1001 = B, 1003 = B, 1002 = C}

start the threads t1 and t2 within a synchronized block.

Replace line n1 with:private synchronized int count = 0;

Replace line n2 with:public synchronized void run () {

Replace line n2 with:volatile int count = 0;

Support for new regional languages does not require recompilation of the code.

Textual elements (messages and GUI labels) are hard-coded in the code.

Language and region-specific programs are created using localized data.

Resource bundle files include data and currency information.

Language codes use lowercase letters and region codes use uppercase letters.

Stream stream = Files.find (Paths.get (“customers.txt”));stream.forEach((String c) -> System.out.println(c));

Stream stream = Files.find (Paths.get (“customers.txt”));stream.forEach( c) -> System.out.println(c));

Stream stream = Files.list (Paths.get (“customers.txt”));stream.forEach( c) -> System.out.println(c));

Stream lines = Files.lines (Paths.get (“customers.txt”));lines.forEach( c) -> System.out.println(c));

Line 3: public synchronized void run() {

Line 1: class MyClass extends Thread {

Line 2: public volatile int value;

Line 2: public synchronized int value;

0.0

1500.0

A compilation error occurs.

2000.0