Test your java
Java Programming Quiz
Test your knowledge of Java programming with this engaging quiz! Designed for beginners and experienced developers alike, this quiz will help you assess your understanding of essential Java concepts and keywords.
Key features of the quiz include:
- 10 multiple-choice and checkbox questions
- Immediate feedback on answers
- Fun way to reinforce Java knowledge
Which one of these lists contains only Java programming language keywords?
Class, if, void, long, Int, continue
Goto, instanceof, native, finally, default, throws
Try, virtual, throw, final, volatile, transient
Strictfp, constant, super, implements, do
Which will legally declare, construct, and initialize an array?
Int [] myList = {"1", "2", "3"};
Int [] myList = (5, 8, 2);
Int myList [] [] = {4,9,7,0};
Int myList [] = {4, 3, 7};
Which is a reserved word in the Java programming language?
Method
Native
Subclasses
Array
Reference
Which one of the following will declare an array and initialize it with five numbers?
Array a = new Array(5);
Int [] a = {23,22,21,20,19};
Int a [] = new int[5];
Int [5] array;
Which is the valid declarations within an interface definition?
Public double methoda();
Public final double methoda();
Static void methoda(double d1);
Protected void methoda(double d1);
Which three are valid declarations of a char?
Char c1 = 064770;
Char c2 = 'face';
Char c3 = 0xbeef;
Char c4 = \u0022;
Char c5 = '\iface';
Char c6 = '\uface';
Which three are legal array declarations?
Int [] myScores [];
Char [] myChars;
Int [6] myScores;
Dog myDogs [];
Dog myDogs [7];
Which one is a valid declaration of a boolean?
Boolean b1 = 0;
Boolean b2 = 'false';
Boolean b3 = false;
Boolean b4 = Boolean.false();
Boolean b5 = no;
Which three are valid declarations of a float?
Float f1 = -343;
Float f2 = 3.14;
Float f3 = 0x12345;
Float f4 = 42e7;
Float f5 = 2001.0D;
Float f6 = 2.81F;
What is the numerical range of a char?
-128 to 127
-(215) to (215) - 1
0 to 32767
0 to 65535
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