Recursion hell

master
Caleb Fontenot 2023-09-01 13:44:23 +07:00
parent 40238e93f4
commit b6fea4bfef
8 changed files with 147 additions and 3 deletions

5
.gitignore vendored

@ -123,11 +123,8 @@
/Semester 2/Assignments/JavaFX_CalebFontenot/target/
/Semester 2/Assignments/JavaFX_CalebFontenot/nbproject/private/
/Semester 2/Assignments/JavaFX_CalebFontenot/build/
<<<<<<< Updated upstream
/Semester 2/Exams/ProgrammingExam2_CalebFontenot/nbproject/private/
/Semester 2/Exams/ProgrammingExam2_CalebFontenot/build/
=======
>>>>>>> Stashed changes
/Semester 2/Assignments/bruh/nbproject/private/
/Semester 2/Exams/Exam2-Practice_CalebFontenot/target/
/Semester 2/Exams/Exam2-Practice1_CalebFontenot/target/
@ -148,3 +145,5 @@
/Semester 3/Assignments/MP1_FX_CalebFontenot/build/
/Semester 3/Assignments/MP1_FX_CalebFontenot/dist/
/Semester 3/Assignments/RecursionDemo/target/
/Semester 3/Assignments/lab5-recursion2_CalebFontenot/target/

@ -0,0 +1,14 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>edu.slcc.asdv.caleb</groupId>
<artifactId>lab5-recursion2_CalebFontenot</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>20</maven.compiler.source>
<maven.compiler.target>20</maven.compiler.target>
<exec.mainClass>edu.slcc.asdv.caleb.lab5.recursion2_calebfontenot.Lab5Recursion2_CalebFontenot</exec.mainClass>
</properties>
</project>

@ -0,0 +1,16 @@
/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
*/
package edu.slcc.asdv.caleb.lab5.recursion2_calebfontenot;
/**
*
* @author caleb
*/
public class Lab5Recursion2_CalebFontenot {
public static void main(String[] args) {
System.out.println("Hello World!");
}
}

@ -0,0 +1,33 @@
/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
*/
package edu.slcc.asdv.caleb.lab5.recursion2_calebfontenot;
import java.util.Scanner;
/**
*
* @author caleb
*/
public class OccurancesOfChar {
public static void main(String[] args)
{
Scanner input = new Scanner(System.in);
System.out.print("Enter a string: ");
String s = input.nextLine();
System.out.print("Enter a character: ");
char ch =input.nextLine().charAt(0);
int times = count(s, ch);
System.out.println(ch + " appears " + times
+ (times > 1 ? " times " : " time ") + "in " + s);
}
public static int count(String str, char a) {
int result = 0;
if (str.length() > 0) {
result = count(str.substring(1), a) +
(( str.charAt(0) == a) ? 1 : 0);
}
return result;
}
}

@ -0,0 +1,30 @@
/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
*/
package edu.slcc.asdv.caleb.lab5.recursion2_calebfontenot;
import java.util.Scanner;
/**
*
* @author caleb
*/
public class ReverseInt {
public static void main(String[] args)
{
Scanner input = new Scanner(System.in);
System.out.print("Enter an integer: ");
int i = input.nextInt();
System.out.print("The reversal of " + i + " is ");
reverseDisplay(i);
System.out.println();
}
public static void reverseDisplay(int value) {
if (value != 0) {
System.out.print(value % 10);
value = value / 10;
reverseDisplay(value);
}
}
}

@ -0,0 +1,26 @@
/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
*/
package edu.slcc.asdv.caleb.lab5.recursion2_calebfontenot;
/**
*
* @author caleb
*/
public class SumSeries1 {
public static void main(String[] args)
{
System.out.printf("%-10s%15s\n", "1", "m(i)");
for (int i = 1; i <= 10; ++i) {
System.out.printf("%-10d%-15.6f\n",i, m(i));
}
}
public static double m(int i) {
if (i == 1) {
return 1;
} else {
return m(i - 1) + 1.0 / i;
}
}
}

@ -0,0 +1,26 @@
/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
*/
package edu.slcc.asdv.caleb.lab5.recursion2_calebfontenot;
/**
*
* @author caleb
*/
public class SumSeries2 {
public static void main(String[] args)
{
System.out.printf("%-10s%15s\n", "i", "m(i)");
for (int i = 1; i <= 10; ++i) {
System.out.printf("%-10d%-15.6f\n",i, m(i));
}
}
public static double m(int i) {
if (i == 1) {
return 1.0 / 3;
} else {
return m(i - 1) + (double) i / (2 * i + 1);
}
}
}