package sample;
public class JavaR_03_01 {
public static void main (String[] args) {
int weight = 60;
if (weight == 60){
System.out.println("①weight == 60");
}
int age1 = 7;
int age2 = 9;
int ageMultiply = age1 * age2;
System.out.println("②age1 * age2:" + ageMultiply);
if (ageMultiply > 60) {
System.out.println("②ageMultiply > 60");
}
int age = 11;
int mod = age % 2;
System.out.println("③mod:" + mod);
if (mod == 1) {
System.out.println("③ageは奇数");
}
String name = "湊";
if (name.equals("湊")) {
System.out.println("④nameは湊");
}
}
}
package sample;
public class JavaR_03_03 {
public static void main (String[] args) {
int seibetsu = 0;
int age = 20;
System.out.println("こんにちは。");
if( seibetsu == 0 ) {
System.out.println("私は男です。");
System.out.println(age + "歳です。");
} else {
System.out.println("私は女です。");
}
System.out.println("よろしくお願いします。");
}
}
package sample;
public class JavaR_03_04 {
public static void main (String[] args) {
boolean tenki = true;
if (tenki == true){
System.out.println("洗濯をします");
System.out.println("散歩にいきます");
} else {
System.out.println("DVDを観ます");
System.out.println("寝ます");
}
}
}
package sample;
public class JavaR_03_05 {
public static void main (String[] args) {
System.out.println("[メニュー] 1:検索 2:登録 3:削除 4:変更 >");
java.util.Scanner scanner = new java.util.Scanner(System.in);
int selected = scanner.nextInt();
scanner.close();
switch(selected){
case 1:
System.out.println("検索します");
break;
case 2:
System.out.println("登録します");
break;
case 3:
System.out.println("削除します");
break;
case 4:
System.out.println("変更します");
break;
default:
break;
}
}
}
package sample;
public class JavaR_03_06 {
public static void main (String[] args) {
System.out.println("【数あてゲーム】");
int ans = new java.util.Random().nextInt(10);
java.util.Scanner scanner = new java.util.Scanner(System.in);
for (int i=0 ; i<5 ; i++) {
System.out.println("0~9の数字を入力してください");
int num = scanner.nextInt();
if(num == ans) {
System.out.println("アタリ!");
break;
} else {
System.out.println("違います");
}
}
scanner.close();
System.out.println("ゲームを終了します");
}
}