Java SE 21 Developer Professional
Last Update Nov 17, 2025
Total Questions : 84
To help you prepare for the 1z0-830 Oracle exam, we are offering free 1z0-830 Oracle exam questions. All you need to do is sign up, provide your details, and prepare with the free 1z0-830 practice questions. Once you have done that, you will have access to the entire pool of Java SE 21 Developer Professional 1z0-830 test questions which will help you better prepare for the exam. Additionally, you can also find a range of Java SE 21 Developer Professional resources online to help you better understand the topics covered on the exam, such as Java SE 21 Developer Professional 1z0-830 video tutorials, blogs, study guides, and more. Additionally, you can also practice with realistic Oracle 1z0-830 exam simulations and get feedback on your progress. Finally, you can also share your progress with friends and family and get encouragement and support from them.
Which of the following java.io.Console methods doesnotexist?
What do the following print?
java
public class DefaultAndStaticMethods {
public static void main(String[] args) {
WithStaticMethod.print();
}
}
interface WithDefaultMethod {
default void print() {
System.out.print("default");
}
}
interface WithStaticMethod extends WithDefaultMethod {
static void print() {
System.out.print("static");
}
}
What is the output of the following snippet? (Assume the file exists)
java
Path path = Paths.get("C:\\home\\joe\\foo");
System.out.println(path.getName(0));
Given:
var cabarets = new TreeMap<>();
cabarets.put(1, "Moulin Rouge");
cabarets.put(2, "Crazy Horse");
cabarets.put(3, "Paradis Latin");
cabarets.put(4, "Le Lido");
cabarets.put(5, "Folies Bergère");
System.out.println(cabarets.subMap(2, true, 5, false));
What is printed?
TESTED 17 Nov 2025
