package de.thws; import java.io.IOException; import java.io.InputStream; import java.io.PrintStream; public class SystemInAbgeleitetVon { public static void main(String[] args) throws IOException { PrintStream out = System.out; InputStream in = System.in; int i; do { i = in.read(); if (i != -1) out.write(i); } while (i != -1); System.out.println(out.getClass()); } } Using System.out.println(out.getClass()) I should now be able…
I know this answer is correct. I'm concerned about understanding. That means for me: There's a class called Printstream, and it has a class variable called System. This class variable, System, itself has a class variable called out , which I call via System.out. Is that correct? Let's continue to understand System.out.println(…): https://docs.oracle.com/en/java/javase/20/docs/api/java.base/java/lang/System.html I have…
A copy of Folder.jpg should be created using InputStream and OutputStream and then stored in the package Lesson 17. The copy should be named copy.jpg What is wrong with the path input here?
I want to copy the file "Hello, how are you?" via stream and create a new file called "copy.txt." Why doesn't this work? I get a FileNotFoundException. Code is attached below: package de.thws; // Von mir zum testen von Streams import java.io.*; public class PerStreamDateiEinlesen { public static void main(String[] args) throws FileNotFoundException { copyFileWithErrorHandling3Modularized();…
The third answer is definitely wrong What about the first and second
I want to open a Gradle in IntelliJ via WSL2, and up until Configure Successful, there are no problems, but suddenly it wants to open the .gradle folder on another partition. The settings are: Gradle user home: (\\wsl$\Ubuntu) \home\name\.gradle Gradle JVM: 11(WSL) After Configure Successfully the console then displays: F:\home\name\.gradle\jdks\jdk8u362-b09 doesn't exist Why is IntelliJ…
The third answer is definitely wrong. => Specification level in Java, what is that? => Multiple inheritance at specification level possible? => Multiple inheritance possible at implementation level?
Can you fill a for loop in Intellij with values the for(int i = 0; i <=…; i++) {… } This means I don't want to have to enter this area every time, but rather quickly execute it using a shortcut, for example. Is this possible?
public class B extends A{ public B(String test) { super(); System.out.println("B: " + test); } public static void main(String[] args) { B b = new B("!"); } } extends => The subclass B inherits from the superclass A great( ); => This calls the constructor of the superclass A => Can I get a tooltip…
I've been trying to create a new 1.19.2 Minecraft project for a few hours, but I keep getting the same error message every time I run runclient. I haven't edited the project yet and have tried several Forge versions, installed the Java version several times, and tried different versions as well, but I keep getting…
Hello, I'm unfortunately stuck with this task and don't know what my code should look like. I would really appreciate some help 🙂
Hello, what should the code look like? I can't seem to get it right for these two tasks. I would be very grateful for an answer.