Java BootCamp
Quiz
•
Professional Development
•
Professional Development
•
Practice Problem
•
Hard
Александр Митясов
Used 2+ times
FREE Resource
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как называется класс, способный создавать изменяемые потокобезопасные строки?
String
StringBuffer
StringBuilder
StringList
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Что будет выведено в результате работа фрагмента программы?
String str = "file index.htm is in c:\Documents";
Pattern p = Pattern.compile("[(\w+\.\w{2,4})]");
Matcher m = p.matches(str);
while(m.find()) { System.out.println(m.group()) }
index.htm
c:\Documents
true
false
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Для запрета изменения переменной после её инициализации используется слово:
const
static
final
default
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
int a = 1;
double b = 2.0;
char c = 'a';
var d = a + b + c;
Какого типа будет d?
int
char
String
double
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Какой будет вывод у метода, если вызов был: SomeClass.someMethod(2)?
class SomeClass {
int a = 5;
static void someMethod(int a) {
this.a = 10;
a++;
System.out.println(this.a, a); }}
5,3
10,3
ошибка компиляции
10,2
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