1Z0-811 What is Java • Complete Question Bank
Complete 1Z0-811 What is Java question bank — all 0 questions with answers and detailed explanations.
Refer to the exhibit. ``` $ java -version java version "1.8.0_201" Java(TM) SE Runtime Environment (build 1.8.0_201-b09) Java HotSpot(TM) 64-Bit Server VM (build 25.201-b09, mixed mode) ```
Drag steps to the numbered slots on the right, or tap a step then tap a slot.
Drag steps to the numbered slots on the right, or tap a step then tap a slot.
Drag a concept onto its matching description — or click a concept then click the description.
Java Virtual Machine that executes bytecode
Runtime environment including JVM and core libraries
Development kit including JRE and tools like javac
Just-In-Time compiler that optimizes bytecode at runtime
Garbage Collector that automatically manages memory
Drag a concept onto its matching description — or click a concept then click the description.
Using private fields with public getters/setters
Using extends keyword to derive a class
Method overriding and overloading
Using abstract classes and interfaces
Using fields that reference other objects
Refer to the exhibit. ``` $ java -version java version "11.0.12" 2021-07-20 LTS Java(TM) SE Runtime Environment 18.9 (build 11.0.12+8-LTS) Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.12+8-LTS, mixed mode) ```
Refer to the exhibit.
```
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at com.example.MyClass.createObjects(MyClass.java:15)
```Refer to the exhibit. ``` java -Xms512m -Xmx2g -XX:+UseG1GC -jar application.jar ```
Refer to the exhibit. minor version: 0 major version: 55 flags: ACC_PUBLIC, ACC_SUPER
java version "11.0.12" 2021-07-20 LTS Java(TM) SE Runtime Environment 18.9 (build 11.0.12+8-LTS) Java HotSpot(TM) 64-Bit Server VM (build 11.0.12+8-LTS, mixed mode)