package ch03;
public class FunctionTest {
// 함수 구현하기
public static int addNum (int num1, int num2 ) {
int result;
result = num1 + num2;
return result;
}
public static void sayHello(String greeting) {
System.out.println(greeting);
}
public static int calcSum() {
int sum = 0;
int i;
for(i = 0; i <= 100; i++) {
sum += i;
}
return sum;
}
public static void main(String[] arge) {
int n1 = 10;
int n2 = 20;
int total = addNum(n1, n2);
sayHello("안녕하세요");
int num = calcSum();
System.out.println(total);
System.out.println(num);
}
package ch04;
public class Student {
public int studentId;
public String studentName;
public String address;
public void showStudentInfo() {
System.out.println( studentId + "학번 학생의 이름은 " + studentName + " 이고, 주소는 " + address + " 입니다.");
}
public String getStudentName() {
return studentName;
}
public void setStudentName(String name) {
studentName = name;
}
package ch04;
public class StudentTest {
public static void main(String[] args) {
Student studentLee = new Student();
studentLee.studentId = 12345;
studentLee.setStudentName("Lee");
studentLee.address = "서울 강남구";
studentLee.showStudentInfo();
Student studentKim = new Student();
studentKim.studentId = 54321;
studentKim.studentName = "Kim";
studentKim.address = "경기도 성남시";
studentKim.showStudentInfo();
}
원래도 이해가 잘 되진 않았지만, 이제는 머리가 멍해지고 있다..^^..
화이팅.............