chore: initialize repository with gitignore

hw2/app/build.gradle

@@ -0,0 +1,29 @@
+plugins {
+    id 'application'
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testImplementation libs.junit.jupiter
+
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+
+    implementation libs.guava
+}
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(21)
+    }
+}
+
+application {
+    mainClass = 'login.LoginValidator'
+}
+
+tasks.named('test') {
+    useJUnitPlatform()
+}

hw2/app/src/main/java/login/LoginValidator.java

@@ -0,0 +1,57 @@
+package login;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class LoginValidator {
+
+    public static List<String> validate(String account, String password) {
+        List<String> messages = new ArrayList<>();
+
+        boolean accountValid = isAccountValid(account);
+        boolean passwordValid = isPasswordValid(password);
+
+        if (accountValid && passwordValid) {
+            messages.add("输入合法");
+        } else {
+            if (!accountValid) {
+                messages.add("账号不合法");
+            }
+            if (!passwordValid) {
+                messages.add("密码不合法");
+            }
+        }
+
+        return messages;
+    }
+
+    /**
+     * 账号合法：6-10位自然数（纯数字，不含负号/小数点，长度6~10）
+     */
+    static boolean isAccountValid(String account) {
+        if (account == null) return false;
+        int len = account.length();
+        if (len < 6 || len > 10) return false;
+        for (char c : account.toCharArray()) {
+            if (c < '0' || c > '9') return false;
+        }
+        return true;
+    }
+
+    /**
+     * 密码合法：恰好8位字符串（非null，长度==8）
+     */
+    static boolean isPasswordValid(String password) {
+        if (password == null) return false;
+        return password.length() == 8;
+    }
+
+    public static void main(String[] args) {
+        if (args.length != 2) {
+            System.out.println("用法: java login.LoginValidator <账号> <密码>");
+            return;
+        }
+        List<String> result = validate(args[0], args[1]);
+        result.forEach(System.out::println);
+    }
+}

hw2/app/src/test/java/login/LoginValidatorTest.java

@@ -0,0 +1,212 @@
+package login;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.DisplayName;
+import static org.junit.jupiter.api.Assertions.*;
+import java.util.List;
+
+class LoginValidatorTest {
+
+    // ========================================================================
+    // 因果图分析
+    // ========================================================================
+    //
+    // 原因 (Causes):
+    //   C1: 账号长度 >= 6
+    //   C2: 账号长度 <= 10
+    //   C3: 账号为纯数字（自然数）
+    //   C4: 密码长度 = 8
+    //
+    // 中间节点:
+    //   M1 = C1 ∧ C2 ∧ C3  (账号合法)
+    //
+    // 结果 (Effects):
+    //   E1: 显示"输入合法"     ← M1 ∧ C4
+    //   E2: 显示"账号不合法"   ← ¬M1
+    //   E3: 显示"密码不合法"   ← ¬C4
+    //
+    // ========================================================================
+    // 判定表简化后的 4 条规则 → 测试用例
+    // ========================================================================
+    //
+    // | 规则 | 账号合法(M1) | 密码合法(C4) | 预期结果               |
+    // |------|-------------|-------------|------------------------|
+    // | R1   | T           | T           | 输入合法               |
+    // | R2   | T           | F           | 密码不合法             |
+    // | R3   | F           | T           | 账号不合法             |
+    // | R4   | F           | F           | 账号不合法 + 密码不合法 |
+    //
+
+    // --- 规则 R1: 账号合法 ∧ 密码合法 → 输入合法 ---
+
+    @Test
+    @DisplayName("R1: 账号合法(6位数字) + 密码合法(8位) → 输入合法")
+    void testR1_validAccountAndPassword() {
+        List<String> result = LoginValidator.validate("123456", "abcd1234");
+        assertEquals(List.of("输入合法"), result);
+    }
+
+    @Test
+    @DisplayName("R1 变体: 账号10位数字 + 密码8位 → 输入合法")
+    void testR1_account10Digits() {
+        List<String> result = LoginValidator.validate("1234567890", "pass$12#");
+        assertEquals(List.of("输入合法"), result);
+    }
+
+    @Test
+    @DisplayName("R1 变体: 账号8位数字(中间值) + 密码8位 → 输入合法")
+    void testR1_accountMiddleLength() {
+        List<String> result = LoginValidator.validate("12345678", "Pa55w0rd");
+        assertEquals(List.of("输入合法"), result);
+    }
+
+    // --- 规则 R2: 账号合法 ∧ 密码不合法 → 密码不合法 ---
+
+    @Test
+    @DisplayName("R2: 账号合法 + 密码过短(7位) → 密码不合法")
+    void testR2_passwordTooShort() {
+        List<String> result = LoginValidator.validate("123456", "abcd123");
+        assertEquals(List.of("密码不合法"), result);
+    }
+
+    @Test
+    @DisplayName("R2 变体: 账号合法 + 密码过长(9位) → 密码不合法")
+    void testR2_passwordTooLong() {
+        List<String> result = LoginValidator.validate("123456", "abcd12345");
+        assertEquals(List.of("密码不合法"), result);
+    }
+
+    @Test
+    @DisplayName("R2 变体: 账号合法 + 密码为空 → 密码不合法")
+    void testR2_passwordEmpty() {
+        List<String> result = LoginValidator.validate("123456", "");
+        assertEquals(List.of("密码不合法"), result);
+    }
+
+    // --- 规则 R3: 账号不合法 ∧ 密码合法 → 账号不合法 ---
+
+    @Test
+    @DisplayName("R3a: 账号过短(5位) + 密码合法 → 账号不合法 [C1为假]")
+    void testR3_accountTooShort() {
+        List<String> result = LoginValidator.validate("12345", "abcd1234");
+        assertEquals(List.of("账号不合法"), result);
+    }
+
+    @Test
+    @DisplayName("R3b: 账号过长(11位) + 密码合法 → 账号不合法 [C2为假]")
+    void testR3_accountTooLong() {
+        List<String> result = LoginValidator.validate("12345678901", "abcd1234");
+        assertEquals(List.of("账号不合法"), result);
+    }
+
+    @Test
+    @DisplayName("R3c: 账号含非数字字符 + 密码合法 → 账号不合法 [C3为假]")
+    void testR3_accountNonNumeric() {
+        List<String> result = LoginValidator.validate("12345a", "abcd1234");
+        assertEquals(List.of("账号不合法"), result);
+    }
+
+    @Test
+    @DisplayName("R3d: 账号为空 + 密码合法 → 账号不合法")
+    void testR3_accountEmpty() {
+        List<String> result = LoginValidator.validate("", "abcd1234");
+        assertEquals(List.of("账号不合法"), result);
+    }
+
+    // --- 规则 R4: 账号不合法 ∧ 密码不合法 → 账号不合法 + 密码不合法 ---
+
+    @Test
+    @DisplayName("R4a: 账号过短 + 密码过短 → 账号不合法 + 密码不合法")
+    void testR4_bothInvalid_shortShort() {
+        List<String> result = LoginValidator.validate("123", "abc");
+        assertEquals(List.of("账号不合法", "密码不合法"), result);
+    }
+
+    @Test
+    @DisplayName("R4b: 账号过长 + 密码过长 → 账号不合法 + 密码不合法")
+    void testR4_bothInvalid_longLong() {
+        List<String> result = LoginValidator.validate("12345678901", "abcde12345");
+        assertEquals(List.of("账号不合法", "密码不合法"), result);
+    }
+
+    @Test
+    @DisplayName("R4c: 账号含字母 + 密码为空 → 账号不合法 + 密码不合法")
+    void testR4_bothInvalid_nonNumericEmpty() {
+        List<String> result = LoginValidator.validate("abcdef", "");
+        assertEquals(List.of("账号不合法", "密码不合法"), result);
+    }
+
+    // ========================================================================
+    // 补充: 覆盖各个原因条件的边界情况
+    // ========================================================================
+
+    @Test
+    @DisplayName("边界: 账号恰好6位(下界) + 密码8位")
+    void testBoundary_account6() {
+        List<String> result = LoginValidator.validate("100000", "12345678");
+        assertEquals(List.of("输入合法"), result);
+    }
+
+    @Test
+    @DisplayName("边界: 账号恰好10位(上界) + 密码8位")
+    void testBoundary_account10() {
+        List<String> result = LoginValidator.validate("1000000000", "12345678");
+        assertEquals(List.of("输入合法"), result);
+    }
+
+    @Test
+    @DisplayName("边界: 账号5位(下界-1) + 密码8位")
+    void testBoundary_account5() {
+        List<String> result = LoginValidator.validate("10000", "12345678");
+        assertEquals(List.of("账号不合法"), result);
+    }
+
+    @Test
+    @DisplayName("边界: 账号11位(上界+1) + 密码8位")
+    void testBoundary_account11() {
+        List<String> result = LoginValidator.validate("10000000001", "12345678");
+        assertEquals(List.of("账号不合法"), result);
+    }
+
+    @Test
+    @DisplayName("边界: 密码恰好8位")
+    void testBoundary_password8() {
+        List<String> result = LoginValidator.validate("123456", "12345678");
+        assertEquals(List.of("输入合法"), result);
+    }
+
+    @Test
+    @DisplayName("边界: 密码7位(8-1)")
+    void testBoundary_password7() {
+        List<String> result = LoginValidator.validate("123456", "1234567");
+        assertEquals(List.of("密码不合法"), result);
+    }
+
+    @Test
+    @DisplayName("边界: 密码9位(8+1)")
+    void testBoundary_password9() {
+        List<String> result = LoginValidator.validate("123456", "123456789");
+        assertEquals(List.of("密码不合法"), result);
+    }
+
+    @Test
+    @DisplayName("C3: 账号含空格")
+    void testAccountWithSpace() {
+        List<String> result = LoginValidator.validate("123 56", "12345678");
+        assertEquals(List.of("账号不合法"), result);
+    }
+
+    @Test
+    @DisplayName("C3: 账号含负号")
+    void testAccountWithMinus() {
+        List<String> result = LoginValidator.validate("-12345", "12345678");
+        assertEquals(List.of("账号不合法"), result);
+    }
+
+    @Test
+    @DisplayName("C3: 账号含小数点")
+    void testAccountWithDot() {
+        List<String> result = LoginValidator.validate("123.56", "12345678");
+        assertEquals(List.of("账号不合法"), result);
+    }
+}

hw2/diagrams/cause-effect.puml

@@ -0,0 +1,46 @@
+@startuml cause-effect
+title 因果图 — 登录功能输入验证
+
+' ========== 布局 ==========
+left to right direction
+skinparam defaultTextAlignment center
+skinparam rectangle {
+    RoundCorner 15
+}
+
+' ========== 原因 (Causes) ==========
+rectangle "原因" as causes {
+    rectangle "C1\n账号长度 ≥ 6" as C1 #LightBlue
+    rectangle "C2\n账号长度 ≤ 10" as C2 #LightBlue
+    rectangle "C3\n账号为纯数字\n（自然数）" as C3 #LightBlue
+    rectangle "C4\n密码长度 = 8" as C4 #LightBlue
+}
+
+' ========== 中间节点 ==========
+rectangle "M1\n账号合法\n(C1 ∧ C2 ∧ C3)" as M1 #Wheat
+
+' ========== 结果 (Effects) ==========
+rectangle "结果" as effects {
+    rectangle "E1\n显示\"输入合法\"" as E1 #LightGreen
+    rectangle "E2\n显示\"账号不合法\"" as E2 #Salmon
+    rectangle "E3\n显示\"密码不合法\"" as E3 #Salmon
+}
+
+' ========== 关系 ==========
+C1 --> M1 : AND
+C2 --> M1 : AND
+C3 --> M1 : AND
+
+M1 --> E1 : AND
+C4 --> E1 : AND
+
+M1 ..> E2 : NOT\n(~M1 → E2)
+C4 ..> E3 : NOT\n(~C4 → E3)
+
+' ========== 约束 ==========
+note bottom of causes
+  约束: C1, C2, C3 相互独立
+  C4 独立于 C1/C2/C3
+end note
+
+@enduml

hw2/diagrams/decision-table.puml

@@ -0,0 +1,36 @@
+@startsalt
+title 判定表 — 登录功能输入验证
+{+
+<style>
+header {
+  FontStyle bold
+}
+</style>
+{#
+**条件/动作** | **R1** | **R2** | **R3** | **R4** | **R5** | **R6** | **R7** | **R8**
+. | . | . | . | . | . | . | . | .
+**C1: 账号长度>=6** | T | T | T | T | F | F | F | F
+**C2: 账号长度<=10** | T | T | F | F | - | - | - | -
+**C3: 账号为纯数字** | T | T | - | - | - | - | - | -
+**C4: 密码长度=8** | T | F | T | F | T | F | T | F
+. | . | . | . | . | . | . | . | .
+**E1: 输入合法** | V |   |   |   |   |   |   |  
+**E2: 账号不合法** |   |   | V | V | V | V | V | V
+**E3: 密码不合法** |   | V |   | V |   | V |   | V
+}
+--
+{
+T = 条件为真, F = 条件为假, "-" = 不影响结果
+V = 触发该动作
+..
+**简化后 4 条规则:**
+{#
+**规则** | **账号合法** | **密码合法** | **结果**
+R1 | T | T | 输入合法
+R2 | T | F | 密码不合法
+R3 | F | T | 账号不合法
+R4 | F | F | 账号不合法 + 密码不合法
+}
+}
+}
+@endsalt

hw2/gradle.properties

@@ -0,0 +1 @@
+org.gradle.configuration-cache=true

hw2/gradle/libs.versions.toml

@@ -0,0 +1,7 @@
+[versions]
+guava = "33.4.6-jre"
+junit-jupiter = "5.12.1"
+
+[libraries]
+guava = { module = "com.google.guava:guava", version.ref = "guava" }
+junit-jupiter = { module = "org.junit.jupiter:junit-jupiter", version.ref = "junit-jupiter" }

hw2/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

hw2/gradlew

@@ -0,0 +1,251 @@
+#!/bin/sh
+
+#
+# Copyright © 2015 the original 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.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH="\\\"\\\""
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$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: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# 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"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

hw2/gradlew.bat

@@ -0,0 +1,94 @@
+@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
+@rem SPDX-License-Identifier: Apache-2.0
+@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=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@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% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 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!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

hw2/settings.gradle

@@ -0,0 +1,6 @@
+plugins {
+    id 'org.gradle.toolchains.foojay-resolver-convention' version '1.0.0'
+}
+
+rootProject.name = 'login'
+include('app')