Courseiva
Exception Handling and Development ToolseasyMultiple ChoiceObjective-mapped

1Z0-811 Exception Handling and Development Tools Practice Question

Which command is used to run a Java application from the command line?

⚠ Common exam trap

Oracle often tests the distinction between compilation (`javac`) and execution (`java`), trapping candidates who confuse the compiler with the runtime launcher.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

java

The `java` command is the correct tool to launch a Java application from the command line. It invokes the Java Virtual Machine (JVM) to load and execute the compiled bytecode contained in `.class` files or a JAR file. Without this command, the application cannot run.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • jar

    Why it's wrong here

    jar is for archiving.

  • javac

    Why it's wrong here

    javac is the compiler.

  • java

    Why this is correct

    java runs the JVM.

  • javadoc

    Why it's wrong here

    javadoc generates documentation.

About these practice questions

One of 481 original 1Z0-811 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This 1Z0-811 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-811 exam.