Java内容重新整理删除过期的东西

Java/JavaDemo/multiclass-demo/Makefile

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+# Makefile for multiclass-demo Java project
+
+# Java compiler and options
+JAVAC = javac
+JAVA = java
+JFLAGS = -g
+
+# Source and build directories
+SRC_DIR = src
+BUILD_DIR = build
+
+# Find all Java source files
+SOURCES = $(shell find $(SRC_DIR) -name "*.java")
+CLASSES = $(SOURCES:$(SRC_DIR)/%.java=$(BUILD_DIR)/%.class)
+
+# Main class
+MAIN_CLASS = com.example.Application
+
+# Default target
+.PHONY: all
+all: compile
+
+# Compile all Java source files
+.PHONY: compile
+compile:
+	@mkdir -p $(BUILD_DIR)
+	$(JAVAC) $(JFLAGS) -sourcepath $(SRC_DIR) -d $(BUILD_DIR) $(SOURCES)
+	@echo "Compilation completed successfully!"
+
+# Run the application
+.PHONY: run
+run: compile
+	$(JAVA) -cp $(BUILD_DIR) $(MAIN_CLASS)
+
+# Clean compiled classes
+.PHONY: clean
+clean:
+	rm -rf $(BUILD_DIR)/*
+	@echo "Clean completed!"
+
+# Rebuild the project
+.PHONY: rebuild
+rebuild: clean compile
+
+# Help target
+.PHONY: help
+help:
+	@echo "Available targets:"
+	@echo "  all      - Compile all source files (default)"
+	@echo "  compile  - Compile all source files"
+	@echo "  run      - Compile and run the application"
+	@echo "  clean    - Remove all compiled classes"
+	@echo "  rebuild  - Clean and compile all source files"
+	@echo "  help     - Display this help message"