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rommmurommmu
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chap04 제어 흐름 이해하기 완료
1 parent 0c9dbb8 commit d754737

13 files changed

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‎src/chap04/BreakExample.java‎

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package chap04;
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public class BreakExample {
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public static void main(String[] args) {
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int sum = 0;
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int num = 1;
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while (true) {
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sum += num;
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if (sum > 100) {
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break;
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}
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num++;
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}
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System.out.println(sum);
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System.out.println(num);
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}
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}

‎src/chap04/ContinueExample.java‎

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package chap04;
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public class ContinueExample {
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public static void main(String[] args) {
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int total = 0;
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for (int num = 1; num <= 100; num++) {
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if (num % 2 == 0) {
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continue;
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}
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total += num;
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}
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System.out.println(total);
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}
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}

‎src/chap04/DoWhileExample.java‎

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package chap04;
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public class DoWhileExample {
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public static void main(String[] args) {
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int num = 1;
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int sum = 0;
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do {
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sum += num;
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num++;
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} while (num <= 10);
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System.out.println("1부터 10까지의 합은 " + sum + "입니다.");
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}
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}

‎src/chap04/ForExample.java‎

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package chap04;
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public class ForExample {
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public static void main(String[] args) {
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int num, sum;
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for (num = 1, sum = 0; num <= 10; num++) {
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sum += num;
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}
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System.out.println("1부터 10까지의 합은 " + sum + "입니다.");
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}
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}

‎src/chap04/ForExample2.java‎

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package chap04;
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public class ForExample2 {
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public static void main(String[] args) {
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int dan, times;
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for (dan = 2; dan <= 9; dan++) {
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for (times = 1; times <= 9; times++) {
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System.out.println(dan + "X" + times + "=" + dan * times);
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}
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System.out.println();
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}
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}
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}

‎src/chap04/ForExample3.java‎

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package chap04;
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public class ForExample3 {
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public static void main(String[] args) {
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for (int i = 0; i < 10; i++) {
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System.out.println(i + "hello world!");
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}
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System.out.println();
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for (int i = 1; i <= 10; i++) {
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System.out.println(i + "hello world!");
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}
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}
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}

‎src/chap04/ForExample4.java‎

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package chap04;
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public class ForExample4 {
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public static void main(String[] args) {
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int dan, times;
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for (dan = 2; dan <= 9; dan++) {
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for (times = 1; times <= 9; times++) {
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if (dan % 2 == 1) {
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break;
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}
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System.out.println(dan + "X" + times + "=" + dan * times);
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}
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System.out.println();
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}
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}
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}

‎src/chap04/IfExample1.java‎

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package chap04;
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public class IfExample1 {
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public static void main(String[] args) {
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int age = 2;
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if (age >= 8) System.out.println("학교에 다닙니다.");
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else {
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System.out.println("학교에 다니지 않습니다.");
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}
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}
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}

‎src/chap04/IfExample2.java‎

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package chap04;
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public class IfExample2 {
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public static void main(String[] args) {
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int age = 9;
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int charge;
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if (age < 8) {
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charge = 1000;
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System.out.println("취학 전 아동입니다.");
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}
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else if (age < 14) {
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charge = 2000;
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System.out.println("초등학생입니다.");
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}
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else if (age < 20) {
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charge = 2500;
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System.out.println("중, 고등학생입니다.");
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}
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else {
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charge = 3000;
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System.out.println("일반인입니다.");
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}
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System.out.println("입장료는 " + charge + "원입니다.");
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}
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}

‎src/chap04/SwitchCase.java‎

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package chap04;
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public class SwitchCase {
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public static void main(String[] args) {
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int rank = 1;
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char medalColor;
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switch (rank) {
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case 1: medalColor = 'G';
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break;
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case 2: medalColor = 'S';
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break;
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case 3: medalColor = 'B';
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break;
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default: medalColor = 'A';
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}
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System.out.println(rank + "등의 메달 색은 " + medalColor + "입니다.");
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}
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}

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