hyndb

prac 4_1 class TV { private int year, inch; private String company; public TV(String company, int year, int inch) { this.company = company; this.year = year; this.inch = inch; } public void show() { System.out.println(company + "에서 만든 " + year + "년형 " + inch + "인치 TV"); } } public class JavaPrac { public static void main(String[] args) { TV myTV = new TV("LG", 2017, 32); myTV.show(); } } prac 4_..

prac 3_1_1 0부터 99까지 2씩 증가하면서 모든 수를 더하는 코드/ 실행 결과: 2450 prac 3_1_2 public class WhileTest { public static void main(String[] args) { int sum = 0, i = 0; while ( i < 100) { sum += i; i +=2; } System.out.println(sum); } } prac 3_1_3 public class ForTest { public static void main(String[] args) { int sum = 0; for (int i = 0; i < 100; i+=2) { sum += i; } System.out.println(sum); } } prac 3_1_4 public..

prac 2_1 import java.util.*; public class prac2 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.print("원화를 입력하세요(단위 원)>>"); int n = sc.nextInt(); System.out.println(n + "원은 $" + n/1100.0 + "입니다."); sc.close(); } } prac 2_2 import java.util.*; public class prac2 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.pr..

prac 9_1 import javax.swing.*; public class MyFrame extends JFrame { public MyFrame() { setTitle("Let's study Java"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setSize(400,200); //사이즈 설정 setVisible(true); //화면에 출력 } public static void main(String[] args) { new MyFrame(); } } prac 9_2 import javax.swing.*; import java.awt.*; public class MyFrame extends JFrame { public MyFrame() { setTitle(..