diff --git a/.classpath b/.classpath new file mode 100644 index 0000000..918026a --- /dev/null +++ b/.classpath @@ -0,0 +1,7 @@ + + + + + + + diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..db6061f --- /dev/null +++ b/.gitignore @@ -0,0 +1,7 @@ +# Ignore Gradle project-specific cache directory +.DS_Store + +.gradle + +# Ignore Gradle build output directory +build diff --git a/.project b/.project new file mode 100644 index 0000000..1c30c0b --- /dev/null +++ b/.project @@ -0,0 +1,17 @@ + + + mock-machine-coding-2 + + + + + + org.eclipse.jdt.core.javabuilder + + + + + + org.eclipse.jdt.core.javanature + + diff --git a/bin/BalanceSheet.class b/bin/BalanceSheet.class new file mode 100644 index 0000000..dc9f301 Binary files /dev/null and b/bin/BalanceSheet.class differ diff --git a/bin/Command.class b/bin/Command.class new file mode 100644 index 0000000..1c7dce3 Binary files /dev/null and b/bin/Command.class differ diff --git a/bin/Driver.class b/bin/Driver.class new file mode 100644 index 0000000..a0cdcff Binary files /dev/null and b/bin/Driver.class differ diff --git a/bin/EqualCommand.class b/bin/EqualCommand.class new file mode 100644 index 0000000..248cd87 Binary files /dev/null and b/bin/EqualCommand.class differ diff --git a/bin/ExactCommand.class b/bin/ExactCommand.class new file mode 100644 index 0000000..e31ee12 Binary files /dev/null and b/bin/ExactCommand.class differ diff --git a/bin/Expense.class b/bin/Expense.class new file mode 100644 index 0000000..1d35e27 Binary files /dev/null and b/bin/Expense.class differ diff --git a/bin/Pair.class b/bin/Pair.class new file mode 100644 index 0000000..e0012c4 Binary files /dev/null and b/bin/Pair.class differ diff --git a/bin/PercentCommand.class b/bin/PercentCommand.class new file mode 100644 index 0000000..14cb247 Binary files /dev/null and b/bin/PercentCommand.class differ diff --git a/bin/Splitwise.class b/bin/Splitwise.class new file mode 100644 index 0000000..c34d82f Binary files /dev/null and b/bin/Splitwise.class differ diff --git a/bin/in.txt b/bin/in.txt new file mode 100644 index 0000000..3a1cb8a --- /dev/null +++ b/bin/in.txt @@ -0,0 +1,10 @@ +SHOW +SHOW u1 +EXPENSE u1 1000 4 u1 u2 u3 u4 EQUAL +SHOW u4 +SHOW u1 +EXPENSE u1 1250 2 u2 u3 EXACT 370 880 +SHOW +EXPENSE u4 1200 4 u1 u2 u3 u4 PERCENT 40 20 20 20 +SHOW u1 +SHOW \ No newline at end of file diff --git a/build.gradle b/build.gradle new file mode 100644 index 0000000..8f51c5e --- /dev/null +++ b/build.gradle @@ -0,0 +1,9 @@ +/* + * This file was generated by the Gradle 'init' task. + * + * This is a general purpose Gradle build. + * Learn how to create Gradle builds at https://guides.gradle.org/creating-new-gradle-builds + */ + + +apply plugin: 'java' \ No newline at end of file diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..5c2d1cf Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..4b7e1f3 --- /dev/null +++ b/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,5 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-5.5.1-bin.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/gradlew b/gradlew new file mode 100755 index 0000000..8e25e6c --- /dev/null +++ b/gradlew @@ -0,0 +1,188 @@ +#!/usr/bin/env sh + +# +# Copyright 2015 the original author or authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +############################################################################## +## +## Gradle start up script for UN*X +## +############################################################################## + +# Attempt to set APP_HOME +# Resolve links: $0 may be a link +PRG="$0" +# Need this for relative symlinks. +while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG=`dirname "$PRG"`"/$link" + fi +done +SAVED="`pwd`" +cd "`dirname \"$PRG\"`/" >/dev/null +APP_HOME="`pwd -P`" +cd "$SAVED" >/dev/null + +APP_NAME="Gradle" +APP_BASE_NAME=`basename "$0"` + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD="maximum" + +warn () { + echo "$*" +} + +die () { + echo + echo "$*" + echo + exit 1 +} + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "`uname`" in + CYGWIN* ) + cygwin=true + ;; + Darwin* ) + darwin=true + ;; + MINGW* ) + msys=true + ;; + NONSTOP* ) + nonstop=true + ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD="java" + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then + MAX_FD_LIMIT=`ulimit -H -n` + if [ $? -eq 0 ] ; then + if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then + MAX_FD="$MAX_FD_LIMIT" + fi + ulimit -n $MAX_FD + if [ $? -ne 0 ] ; then + warn "Could not set maximum file descriptor limit: $MAX_FD" + fi + else + warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" + fi +fi + +# For Darwin, add options to specify how the application appears in the dock +if $darwin; then + GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" +fi + +# For Cygwin, switch paths to Windows format before running java +if $cygwin ; then + APP_HOME=`cygpath --path --mixed "$APP_HOME"` + CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` + JAVACMD=`cygpath --unix "$JAVACMD"` + + # We build the pattern for arguments to be converted via cygpath + ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` + SEP="" + for dir in $ROOTDIRSRAW ; do + ROOTDIRS="$ROOTDIRS$SEP$dir" + SEP="|" + done + OURCYGPATTERN="(^($ROOTDIRS))" + # Add a user-defined pattern to the cygpath arguments + if [ "$GRADLE_CYGPATTERN" != "" ] ; then + OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" + fi + # Now convert the arguments - kludge to limit ourselves to /bin/sh + i=0 + for arg in "$@" ; do + CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` + CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option + + if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition + eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` + else + eval `echo args$i`="\"$arg\"" + fi + i=$((i+1)) + done + case $i in + (0) set -- ;; + (1) set -- "$args0" ;; + (2) set -- "$args0" "$args1" ;; + (3) set -- "$args0" "$args1" "$args2" ;; + (4) set -- "$args0" "$args1" "$args2" "$args3" ;; + (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; + (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; + (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; + (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; + (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; + esac +fi + +# Escape application args +save () { + for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done + echo " " +} +APP_ARGS=$(save "$@") + +# Collect all arguments for the java command, following the shell quoting and substitution rules +eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" + +# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong +if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then + cd "$(dirname "$0")" +fi + +exec "$JAVACMD" "$@" diff --git a/gradlew.bat b/gradlew.bat new file mode 100644 index 0000000..24467a1 --- /dev/null +++ b/gradlew.bat @@ -0,0 +1,100 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem + +@if "%DEBUG%" == "" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%" == "" set DIRNAME=. +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if "%ERRORLEVEL%" == "0" goto init + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto init + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:init +@rem Get command-line arguments, handling Windows variants + +if not "%OS%" == "Windows_NT" goto win9xME_args + +:win9xME_args +@rem Slurp the command line arguments. +set CMD_LINE_ARGS= +set _SKIP=2 + +:win9xME_args_slurp +if "x%~1" == "x" goto execute + +set CMD_LINE_ARGS=%* + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% + +:end +@rem End local scope for the variables with windows NT shell +if "%ERRORLEVEL%"=="0" goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 +exit /b 1 + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/settings.gradle b/settings.gradle new file mode 100644 index 0000000..e602465 --- /dev/null +++ b/settings.gradle @@ -0,0 +1,10 @@ +/* + * This file was generated by the Gradle 'init' task. + * + * The settings file is used to specify which projects to include in your build. + * + * Detailed information about configuring a multi-project build in Gradle can be found + * in the user manual at https://docs.gradle.org/5.5.1/userguide/multi_project_builds.html + */ + +rootProject.name = 'Mock Machine Coding 2' diff --git a/src/main/java/BalanceSheet.java b/src/main/java/BalanceSheet.java new file mode 100644 index 0000000..c31d179 --- /dev/null +++ b/src/main/java/BalanceSheet.java @@ -0,0 +1,132 @@ +import java.util.ArrayList; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.Set; +import java.util.function.Predicate; + +public class BalanceSheet { + + private Map> sheet; + private ExpenseGraph expenseGraph; + + public BalanceSheet() { + + sheet = new HashMap<>(); + expenseGraph = new ExpenseGraph(); + } + + public void addExpense(String lender, String borrower, Expense expense) { + + TradePair pair = new TradePair(lender, borrower); + + + if (sheet.containsKey(pair)) + sheet.get(pair).add(expense); + else + sheet.computeIfAbsent(pair, k -> new ArrayList<>()).add(expense); + + expenseGraph.add(lender, borrower, expense.getAmount()); + + } + + public Map> getSheet() { + return sheet; + } + + public List showExpense(String user) { + return expenseGraph.generateFor(user); + } + + +} + +class ExpenseGraph { + + + private Map> graph; + + public ExpenseGraph() { + this.graph = new HashMap<>(); + } + + + public List generateFor(String user) { + List logs = new ArrayList<>(); + + + graph.entrySet().stream().forEach(lender -> { + + lender.getValue().entrySet().stream().filter(entry -> { + if (user.isEmpty() || lender.getKey().equals(user)) + return true; + return entry.getKey().equals(user); + }).forEach(borrower -> { + + logs.add(new StringBuilder().append(borrower.getKey() + " owes " + lender.getKey() + ": ").append(borrower.getValue()).toString()); + + }); + + + }); + if (logs.isEmpty()) + logs.add("No balances"); + + return logs; + } + + private void addEdge(String from, String to, final double amount) { + if (graph.containsKey(from)) { + + Map fromToEdges = graph.get(from); + + fromToEdges.compute(to, (key, value) -> value == null ? amount : value + amount); + + + } else { + Map fromToEdges = new HashMap<>(); + fromToEdges.put(to, amount); + graph.put(from, fromToEdges); + } + } + + private void removeEdge(String from, String to) { + graph.get(from).remove(to); + } + + public void add(String lender, String borrower, double amount) { + + + if (graph.containsKey(borrower)) { + + Map toFromEdges = graph.get(borrower); + + + double prevAmount = toFromEdges.getOrDefault(lender, -1.0); + + + if (Double.compare(prevAmount, -1.0) == 0) { + addEdge(lender, borrower, amount); + } else { + int compare = Double.compare(prevAmount, amount); + if (compare <= 0) { + removeEdge(borrower, lender); + } + + + if (compare == -1) { + addEdge(lender, borrower, amount - prevAmount); + } else if (compare == 1) { + addEdge(borrower, lender, -amount); + } + } + + } else { + addEdge(lender, borrower, amount); + } + + + } +} diff --git a/src/main/java/Command.java b/src/main/java/Command.java new file mode 100644 index 0000000..047552a --- /dev/null +++ b/src/main/java/Command.java @@ -0,0 +1,14 @@ +import java.util.List; + +public abstract class Command { + protected double amount; + protected List ratios; + + protected Command(double amount) { + this.amount = amount; + } + + + abstract void process(BalanceSheet sheet,String lender,List borrower); + +} diff --git a/src/main/java/Driver.java b/src/main/java/Driver.java new file mode 100644 index 0000000..eac5c30 --- /dev/null +++ b/src/main/java/Driver.java @@ -0,0 +1,23 @@ +import java.io.File; +import java.util.Scanner; + +public class Driver { + + public static void main(String[] args) throws Exception { + + Scanner sc = new Scanner(new File("/home/jigar/Desktop/mock-machine-coding-2/src/main/java/in.txt")); + + BalanceSheet balanceSheet = new BalanceSheet(); + + Splitwise splitwise = new Splitwise(balanceSheet); + + while (sc.hasNextLine()) { + String inputLine = sc.nextLine(); + + splitwise.process(inputLine).forEach(System.out::println); + + } + + sc.close(); + } +} \ No newline at end of file diff --git a/src/main/java/EqualCommand.java b/src/main/java/EqualCommand.java new file mode 100644 index 0000000..bddc69a --- /dev/null +++ b/src/main/java/EqualCommand.java @@ -0,0 +1,29 @@ +import java.util.ArrayList; +import java.util.List; + +public class EqualCommand extends Command { + + EqualCommand(double amount, int numOfUsers) { + super(amount); + List ratios = new ArrayList<>(); + + for (int i = 1; i <= numOfUsers - 1; i++) { + double ratio = 1 / (double) numOfUsers; + + ratio = Math.round(ratio * 100.0) / 100.0; + + ratios.add(ratio); + + } + + this.ratios = ratios; + } + + void process(BalanceSheet sheet, String lender, List borrowers) { + + for (int i = 0; i < ratios.size(); i++) + sheet.addExpense(lender, borrowers.get(i), new Expense(ratios.get(i) * amount)); + + } + +} diff --git a/src/main/java/ExactCommand.java b/src/main/java/ExactCommand.java new file mode 100644 index 0000000..fc22044 --- /dev/null +++ b/src/main/java/ExactCommand.java @@ -0,0 +1,20 @@ +import java.util.List; + +public class ExactCommand extends Command{ + + public ExactCommand(double amount,List shares) { + super(amount); + this.ratios = shares; + } + + + + @Override + void process(BalanceSheet sheet, String lender, List borrowers) { + + for (int i = 0; i < ratios.size(); i++) + sheet.addExpense(lender, borrowers.get(i), new Expense(ratios.get(i))); + + } + +} diff --git a/src/main/java/Expense.java b/src/main/java/Expense.java new file mode 100644 index 0000000..f49c2d0 --- /dev/null +++ b/src/main/java/Expense.java @@ -0,0 +1,17 @@ +public class Expense { + + private double amount; + // private String note; + + public Expense(double amount) { + this.amount = amount; + } + + public double getAmount() { + return amount; + } + + public void setAmount(double amount) { + this.amount = amount; + } +} \ No newline at end of file diff --git a/src/main/java/Pair.java b/src/main/java/Pair.java new file mode 100644 index 0000000..4c8a4f7 --- /dev/null +++ b/src/main/java/Pair.java @@ -0,0 +1,67 @@ +public class Pair { + //currently keeping it String, it can be User object as well + private String lender; + private String borrower; + + Pair(String lender, String borrower) { + this.lender = lender; + this.borrower = borrower; + } + + + + + @Override + public int hashCode() { + final int prime = 31; + int result = 1; + result = prime * result + ((borrower == null) ? 0 : borrower.hashCode()); + result = prime * result + ((lender == null) ? 0 : lender.hashCode()); + return result; + } + + + + + @Override + public boolean equals(Object obj) { + if (this == obj) + return true; + if (obj == null) + return false; + if (getClass() != obj.getClass()) + return false; + Pair other = (Pair) obj; + if (borrower == null) { + if (other.borrower != null) + return false; + } else if (!borrower.equals(other.borrower)) + return false; + if (lender == null) { + if (other.lender != null) + return false; + } else if (!lender.equals(other.lender)) + return false; + return true; + } + + + + + public String getLender() { + return lender; + } + + public void setLender(String lender) { + this.lender = lender; + } + + public String getBorrower() { + return borrower; + } + + public void setBorrower(String borrower) { + this.borrower = borrower; + } + +} \ No newline at end of file diff --git a/src/main/java/PercentCommand.java b/src/main/java/PercentCommand.java new file mode 100644 index 0000000..a9e0bfe --- /dev/null +++ b/src/main/java/PercentCommand.java @@ -0,0 +1,18 @@ +import java.util.List; +import java.util.stream.Collectors; + +public class PercentCommand extends Command { + + public PercentCommand(double amount, List percents) { + super(amount); + this.ratios = percents.stream().map(i -> i / 100.0).collect(Collectors.toList()); + } + + @Override + void process(BalanceSheet sheet, String lender, List borrowers) { + for (int i = 0; i < ratios.size(); i++) + sheet.addExpense(lender, borrowers.get(i), new Expense(ratios.get(i) * amount)); + + } + +} diff --git a/src/main/java/Splitwise.java b/src/main/java/Splitwise.java new file mode 100644 index 0000000..6b36f75 --- /dev/null +++ b/src/main/java/Splitwise.java @@ -0,0 +1,104 @@ +import java.util.ArrayList; +import java.util.List; +import java.util.Scanner; + +public class Splitwise { + + private BalanceSheet balanceSheet; + + public Splitwise(BalanceSheet sheet) { + this.balanceSheet = sheet; + + } + + public List process(String inputLine) { + List logs = new ArrayList<>(); + + Scanner sc = new Scanner(inputLine); + + switch (sc.next()) { + case "SHOW": + String user = ""; + + if (sc.hasNext()) + user = sc.next(); + + logs.addAll(balanceSheet.showExpense(user)); + + break; + + case "EXPENSE": + String lender = sc.next(); + double amount = sc.nextDouble(); + + int numberOfusers = sc.nextInt(); + List borrowers = new ArrayList<>(); + + for (int i = 0; i < numberOfusers; i++) { + String borrower = sc.next(); + borrowers.add(borrower); + } + int lenderIdx = -1; + + for (int i = 0; i < numberOfusers; i++) { + if (borrowers.get(i).equals(lender)) { + lenderIdx = i; + break; + } + } + if (lenderIdx > -1) + borrowers.remove(lenderIdx); + + String typeOfSharing = sc.next(); + Command command = null; + + switch (typeOfSharing) { + + case "EXACT": + List shares = new ArrayList<>(); + for (int i = 0; i < numberOfusers; i++) + shares.add(sc.nextDouble()); + + double totalSum = shares.stream().reduce(0.0, (sum, amt) -> sum += amt).doubleValue(); + + if (totalSum != amount) { + logs.add(inputLine); + logs.add("total isn't matching with amount"); + + } else + command = new ExactCommand(amount,shares); + + break; + case "EQUAL": + command = new EqualCommand(amount,numberOfusers); + break; + case "PERCENT": + List percents = new ArrayList<>(); + for (int i = 0; i < numberOfusers; i++) { + percents.add(sc.nextDouble()); + } + + double totalPercent = percents.stream().reduce(0.0, (sum, amt) -> sum += amt).doubleValue(); + + percents.remove(lenderIdx); + + if (Double.compare(totalPercent, 100.0) != 0) { + logs.add(inputLine); + logs.add("total percent isn't 100%"); + } else + command = new PercentCommand(amount,percents); + + break; + + } + if (command != null) + command.process(balanceSheet, lender, borrowers); + + break; + } + + sc.close(); + return logs; + } + +} diff --git a/src/main/java/in.txt b/src/main/java/in.txt new file mode 100644 index 0000000..3a1cb8a --- /dev/null +++ b/src/main/java/in.txt @@ -0,0 +1,10 @@ +SHOW +SHOW u1 +EXPENSE u1 1000 4 u1 u2 u3 u4 EQUAL +SHOW u4 +SHOW u1 +EXPENSE u1 1250 2 u2 u3 EXACT 370 880 +SHOW +EXPENSE u4 1200 4 u1 u2 u3 u4 PERCENT 40 20 20 20 +SHOW u1 +SHOW \ No newline at end of file