Initial commit

.classpath

+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

.project

+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>KHW2</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

.settings/org.eclipse.jdt.core.prefs

+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8

src/Run.java

+public class Run {
+
+	public static void main(String[] args) {
+		Student std1 = new Student("mohammad", "motevali", "9831100");
+		Student std2 = new Student("ali", "motevali", "9831200");
+		
+		std1.display();
+		std1.setGrade(20);
+		System.out.println(std1.getFirstName());
+		std1.display();
+	}
+
+}
\ No newline at end of file

src/Student.java

+/**
+ * 
+ * @author mohammad
+ * @since 2020
+ *
+ */
+public class Student {
+	
+	private String firstName;
+	private String lastName;
+	private String id;
+	private int grade;
+	
+	/**
+	 * create a new student:
+	 * 
+	 * @param fName this is first name of student
+	 * @param lName this is last name of student
+	 * @param id this is student number
+	 */
+	
+	public Student(String fName, String lName, String id) {
+		firstName = fName;
+		lastName = lName;
+		this.id = id;
+		grade = 0;
+	}
+	/**
+	 * get the first name of student
+	 * @return firstName
+	 */
+	public String getFirstName() {
+		return firstName;
+	}
+	/**
+	 * 
+	 * @param firstName set for name
+	 */
+	public void setFirstName(String firstName) {
+		this.firstName = firstName;
+	}
+	/**
+	 * get the last name of student
+	 * @return lastName
+	 */
+	public String getLastName() {
+		return lastName;
+	}
+	/**
+	 * 
+	 * @param lastName set for last name
+	 */
+	public void setLastName(String lastName) {
+		this.lastName = lastName;
+	}
+	/**
+	 * get the id of student
+	 * @return id
+	 */
+	public String getId() {
+		return id;
+	}
+	/**
+	 * 
+	 * @param id set id(7 digit)
+	 */
+	public void setId(String id) {
+		if( id.length() == 7 ) {
+			this.id = id;
+		}
+	}
+	/**
+	 * 
+	 * @param grade set for grade of student
+	 */
+	public void setGrade(int grade) {
+		this.grade = grade;
+	}
+	/**
+	 * print the information of student
+	 */
+	public void display() {
+		System.out.println(lastName + "     student id: " + id +"        grade: " + grade);
+	}
+	
+}
\ No newline at end of file