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Java Basics

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Questions and Answers

Which control structure in Java allows for the execution of a block of code repeatedly as long as a specified condition is true?

do-while loop

while loop (correct)

if-else statement

for loop

What is the correct syntax for declaring a one-dimensional array in Java?

arrayName int[];

int arrayName[]; (correct)

int[] arrayName;

arrayName[] int;

Which keyword is used to define a method in Java?

class

void (correct)

method

function

Study Notes

Control Structures in Java

A while loop allows for the execution of a block of code repeatedly as long as a specified condition is true.

Arrays in Java

The correct syntax for declaring a one-dimensional array in Java is type[] arrayName; or type arrayName[];.

Methods in Java

The void keyword is used to define a method in Java that does not return any value.
Alternatively, the return type of a method can be specified using keywords like int, double, String, etc.

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Description

Test your knowledge of object-oriented programming with this quiz on Java basics. From data types and variable declarations to control structures and arrays, this quiz covers all the essential elements you need to know. Challenge yourself with questions about methods and control statements like if-else, switch, and various types of loops.