added blatt 5/6
This commit is contained in:
parent
083c15bf8b
commit
5698534b55
|
|
@ -4,6 +4,7 @@
|
|||
<modules>
|
||||
<module fileurl="file://$PROJECT_DIR$/AufgabenBlatt3/AufgabenBlatt3.iml" filepath="$PROJECT_DIR$/AufgabenBlatt3/AufgabenBlatt3.iml" />
|
||||
<module fileurl="file://$PROJECT_DIR$/AufgabenBlatt4/AufgabenBlatt4.iml" filepath="$PROJECT_DIR$/AufgabenBlatt4/AufgabenBlatt4.iml" />
|
||||
<module fileurl="file://$PROJECT_DIR$/AufgabenBlatt6/AufgabenBlatt6.iml" filepath="$PROJECT_DIR$/AufgabenBlatt6/AufgabenBlatt6.iml" />
|
||||
<module fileurl="file://$PROJECT_DIR$/GregorianischerKalender/GregorianischerKalender.iml" filepath="$PROJECT_DIR$/GregorianischerKalender/GregorianischerKalender.iml" />
|
||||
<module fileurl="file://$PROJECT_DIR$/.idea/Java-Programming.iml" filepath="$PROJECT_DIR$/.idea/Java-Programming.iml" />
|
||||
</modules>
|
||||
|
|
|
|||
|
|
@ -0,0 +1,29 @@
|
|||
### IntelliJ IDEA ###
|
||||
out/
|
||||
!**/src/main/**/out/
|
||||
!**/src/test/**/out/
|
||||
|
||||
### Eclipse ###
|
||||
.apt_generated
|
||||
.classpath
|
||||
.factorypath
|
||||
.project
|
||||
.settings
|
||||
.springBeans
|
||||
.sts4-cache
|
||||
bin/
|
||||
!**/src/main/**/bin/
|
||||
!**/src/test/**/bin/
|
||||
|
||||
### NetBeans ###
|
||||
/nbproject/private/
|
||||
/nbbuild/
|
||||
/dist/
|
||||
/nbdist/
|
||||
/.nb-gradle/
|
||||
|
||||
### VS Code ###
|
||||
.vscode/
|
||||
|
||||
### Mac OS ###
|
||||
.DS_Store
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<module type="JAVA_MODULE" version="4">
|
||||
<component name="NewModuleRootManager" inherit-compiler-output="true">
|
||||
<exclude-output />
|
||||
<content url="file://$MODULE_DIR$">
|
||||
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
|
||||
</content>
|
||||
<orderEntry type="jdk" jdkName="openjdk-19" jdkType="JavaSDK" />
|
||||
<orderEntry type="sourceFolder" forTests="false" />
|
||||
<orderEntry type="module-library">
|
||||
<library name="JUnit4">
|
||||
<CLASSES>
|
||||
<root url="jar://$MAVEN_REPOSITORY$/junit/junit/4.13.1/junit-4.13.1.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar!/" />
|
||||
</CLASSES>
|
||||
<JAVADOC />
|
||||
<SOURCES />
|
||||
</library>
|
||||
</orderEntry>
|
||||
</component>
|
||||
</module>
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
import java.util.Arrays;
|
||||
|
||||
public class Aufgabe3 {
|
||||
|
||||
public static void main(String[] args) {
|
||||
int [] array = {1,2,3};
|
||||
int zahl = 20;
|
||||
System.out.println("Array: " + Arrays.toString(array));
|
||||
System.out.println("Zahl: " + zahl);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
import java.util.Arrays;
|
||||
|
||||
public class Aufgabe5 {
|
||||
|
||||
public static void main(String[] args) {
|
||||
int[] a = { 1, 2 };
|
||||
int[] b = { 1, 2 };
|
||||
if(Arrays.equals(a, b)){
|
||||
System.out.println("Gleich !");
|
||||
}else{
|
||||
System.out.println("Ungleich !");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,146 @@
|
|||
import org.junit.Test;
|
||||
|
||||
import java.util.Scanner;
|
||||
|
||||
/**
|
||||
* Generic test class for implementing and testing reading in arrays of integers
|
||||
* _ _ _ _
|
||||
* __ ___ __(_) |_| |_ ___ _ __ | |__ _ _
|
||||
* \ \ /\ / / '__| | __| __/ _ \ '_ \ | '_ \| | | |
|
||||
* \ V V /| | | | |_| || __/ | | | | |_) | |_| |
|
||||
* \_/\_/ |_| |_|\__|\__\___|_| |_| |_.__/ \__, |
|
||||
* |___/
|
||||
* ____ __ __ _
|
||||
* / ___|_ _____ _ __ \ \ / /__ __ _ ___| |
|
||||
* \___ \ \ / / _ \ '_ \ \ \ / / _ \ / _` |/ _ \ |
|
||||
* ___) \ V / __/ | | | \ V / (_) | (_| | __/ |
|
||||
* |____/ \_/ \___|_| |_| \_/ \___/ \__, |\___|_|
|
||||
* |___/
|
||||
* Licensed under the GPLv2 License, Version 2.0 (the "License");
|
||||
* Copyright (c) Sven Vogel
|
||||
*/
|
||||
public class Aufgabe6 {
|
||||
|
||||
/**
|
||||
* Read 10 integers from System.in and print them to the screen when done
|
||||
* This method continues to request more input even when the input is not an integer.
|
||||
*/
|
||||
private static void taskA() {
|
||||
try(var scanner = new Scanner(System.in)) {
|
||||
var array = new double[10];
|
||||
var counter = 0;
|
||||
|
||||
while (true) {
|
||||
try {
|
||||
if (counter > 9) {
|
||||
for (var value : array) {
|
||||
System.out.println(value);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
System.out.println("Enter a number: ");
|
||||
array[counter++] = scanner.nextDouble();
|
||||
|
||||
} catch (Exception e) {
|
||||
System.err.println("You did not enter a number");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Reads in an integer from System.in and creates an array of integers with the given size
|
||||
* Read 10 integers from System.in and print them to the screen when done
|
||||
* This method continues to request more input even when the input is not an integer.
|
||||
*/
|
||||
private static void taskB() {
|
||||
try(var scanner = new Scanner(System.in)) {
|
||||
|
||||
double[] array = null;
|
||||
var counter = 0;
|
||||
|
||||
// read something in until we allocated an array
|
||||
while (array == null) {
|
||||
try {
|
||||
array = new double[scanner.nextInt()];
|
||||
} catch (Exception e) {
|
||||
System.err.println("You did not enter a valid number");
|
||||
}
|
||||
}
|
||||
|
||||
// fill the array
|
||||
while (true) {
|
||||
try {
|
||||
if (counter >= array.length - 1) {
|
||||
for (var value : array) {
|
||||
System.out.println(value);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
System.out.println("Enter a number: ");
|
||||
array[counter++] = scanner.nextDouble();
|
||||
|
||||
} catch (Exception e) {
|
||||
System.err.println("You did not enter a number");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read 5 integers from System.in and print the median of them
|
||||
* This method continues to request more input even when the input is not an integer.
|
||||
*/
|
||||
private static void taskC() {
|
||||
try(var scanner = new Scanner(System.in)) {
|
||||
var array = new double[5];
|
||||
var counter = 0;
|
||||
|
||||
while (true) {
|
||||
try {
|
||||
if (counter > 5) {
|
||||
var sum = 0;
|
||||
for (var value : array) {
|
||||
sum += value;
|
||||
}
|
||||
System.out.println("median: " + (sum / 5.0));
|
||||
break;
|
||||
}
|
||||
|
||||
System.out.println("Enter a number: ");
|
||||
array[counter++] = scanner.nextDouble();
|
||||
|
||||
} catch (Exception e) {
|
||||
System.err.println("You did not enter a number");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Prints the content of two arrays as pairs to the screen
|
||||
*/
|
||||
private static void taskD() {
|
||||
int x []= {9,8,7,6,5,4};
|
||||
int y []= {1,2,3,4,5,6};
|
||||
|
||||
for (int i = 0; i < x.length; i++) {
|
||||
System.out.format("(%d, %d) ", x[i], y[i]);
|
||||
}
|
||||
|
||||
System.out.println();
|
||||
}
|
||||
|
||||
/**
|
||||
* Test various functions in this class
|
||||
*/
|
||||
@Test
|
||||
public void test() {
|
||||
// taskA();
|
||||
// taskB();
|
||||
// taskC();
|
||||
// taskD();
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
import org.junit.Test;
|
||||
|
||||
/**
|
||||
* Generic test class for implementing and testing an algorithm to compare two arrays as array of pairs
|
||||
* _ _ _ _
|
||||
* __ ___ __(_) |_| |_ ___ _ __ | |__ _ _
|
||||
* \ \ /\ / / '__| | __| __/ _ \ '_ \ | '_ \| | | |
|
||||
* \ V V /| | | | |_| || __/ | | | | |_) | |_| |
|
||||
* \_/\_/ |_| |_|\__|\__\___|_| |_| |_.__/ \__, |
|
||||
* |___/
|
||||
* ____ __ __ _
|
||||
* / ___|_ _____ _ __ \ \ / /__ __ _ ___| |
|
||||
* \___ \ \ / / _ \ '_ \ \ \ / / _ \ / _` |/ _ \ |
|
||||
* ___) \ V / __/ | | | \ V / (_) | (_| | __/ |
|
||||
* |____/ \_/ \___|_| |_| \_/ \___/ \__, |\___|_|
|
||||
* |___/
|
||||
* Licensed under the GPLv2 License, Version 2.0 (the "License");
|
||||
* Copyright (c) Sven Vogel
|
||||
*/
|
||||
public class Aufgabe7 {
|
||||
|
||||
/**
|
||||
* Test if the two arrays are filled with the same pair
|
||||
*
|
||||
* @param x the first value of each pair
|
||||
* @param y the second value of each pair
|
||||
* @return if the two arrays contain the same pair
|
||||
*/
|
||||
private static boolean eq(int[] x, int[] y) {
|
||||
if (x.length != y.length)
|
||||
return false;
|
||||
|
||||
for (int i = 0; i < x.length; i++) {
|
||||
var x2 = x[i];
|
||||
var y2 = y[i];
|
||||
|
||||
for (int j = 0; j < y.length; j++) {
|
||||
if (x2 != x[j] || y2 != y[j])
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
@Test
|
||||
public void test() {
|
||||
int x []= {9,8,7,6,5,4};
|
||||
int y []= {1,2,3,4,5,6};
|
||||
|
||||
System.out.println(eq(x, y));
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
public class Aufgabe8 {
|
||||
|
||||
public static void main(String args[]) {
|
||||
double wechselkurs = 0.7238; // USD -> EUR
|
||||
double[] dollarwerte = { 0.0, 1.0, 2.0, 3.0, 4.0, 5.0 }; // Array 1 initialisieren
|
||||
double[] eurowerte = dollarwerte.clone(); // Array 2 mit gleicher Größe
|
||||
// ^^^^^^^
|
||||
// Array muss kopiert werden
|
||||
|
||||
for (int i = 0; i < dollarwerte.length; i++) {
|
||||
eurowerte[i] = dollarwerte[i] * wechselkurs; // Eurowerte berechnen
|
||||
// Ergebnisse ausgeben
|
||||
System.out.println(dollarwerte[i] + "$ sind " + eurowerte[i] + "€.");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,68 @@
|
|||
import org.junit.Test;
|
||||
|
||||
import java.util.Arrays;
|
||||
|
||||
/**
|
||||
* Generic test class for implementing and testing an algorithm to reverse arrays of strings
|
||||
* _ _ _ _
|
||||
* __ ___ __(_) |_| |_ ___ _ __ | |__ _ _
|
||||
* \ \ /\ / / '__| | __| __/ _ \ '_ \ | '_ \| | | |
|
||||
* \ V V /| | | | |_| || __/ | | | | |_) | |_| |
|
||||
* \_/\_/ |_| |_|\__|\__\___|_| |_| |_.__/ \__, |
|
||||
* |___/
|
||||
* ____ __ __ _
|
||||
* / ___|_ _____ _ __ \ \ / /__ __ _ ___| |
|
||||
* \___ \ \ / / _ \ '_ \ \ \ / / _ \ / _` |/ _ \ |
|
||||
* ___) \ V / __/ | | | \ V / (_) | (_| | __/ |
|
||||
* |____/ \_/ \___|_| |_| \_/ \___/ \__, |\___|_|
|
||||
* |___/
|
||||
* Licensed under the GPLv2 License, Version 2.0 (the "License");
|
||||
* Copyright (c) Sven Vogel
|
||||
*/
|
||||
public class Aufgabe9 {
|
||||
|
||||
/**
|
||||
* Creates a new instance of the supplied strings and returns the reversed array
|
||||
* @param strings the array of strings to reverse
|
||||
* @return the reversed array instance
|
||||
*/
|
||||
private static String[] reverse1(String[] strings) {
|
||||
var result = new String[strings.length];
|
||||
|
||||
for (int i = 0; i < result.length; i++) {
|
||||
result[strings.length - i - 1] = strings[i];
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Reverse the supplied array
|
||||
* @param strings the array of strings to reverse
|
||||
*/
|
||||
private static void reverse2(String[] strings) {
|
||||
|
||||
for (int i = 0; i < strings.length / 2; i++) {
|
||||
var tmp = strings[i];
|
||||
strings[i] = strings[strings.length - i - 1];
|
||||
strings[strings.length - i - 1] = tmp;
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void test() {
|
||||
var STRINGS = new String[] {
|
||||
"abc",
|
||||
"def",
|
||||
"ghi",
|
||||
"123",
|
||||
"456",
|
||||
"789"
|
||||
};
|
||||
|
||||
System.out.println(Arrays.toString(reverse1(STRINGS)) + " " + Arrays.toString(STRINGS));
|
||||
|
||||
reverse2(STRINGS);
|
||||
System.out.println(Arrays.toString(STRINGS));
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue