languages/java-15/interfaces languages/java-15/interfaces/AbstractMethodDeclarations AbstractMethodDeclarations.sdf languages/java-15/interfaces/Annotations Annotations.sdf languages/java-15/interfaces/AnnotationTypes AnnotationTypes.sdf languages/java-15/interfaces/ConstantDeclarations ConstantDeclarations.sdf languages/java-15/interfaces/InterfaceDeclarations InterfaceDeclarations.sdf languages/java-15/interfaces/Main Main.sdf