[code=php]
public class Main {

public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("Hello World!");

}
}
[/code]


[code=php]
public class Main {

public static void main(String[] args) {
// TODO Auto-generated method stub
int intType = 100;
double doubleType = 150.5;
String stringType = "콩나물대제국";

System.out.println(intType);
System.out.println(doubleType);
System.out.println(stringType);
}
}
[/code]


[code=php]
public class Main {

public static void main(String[] args) {
// TODO Auto-generated method stub
double b=0.4;
int a = (int) (b+0.5);
System.out.println(a);
}
}
[/code]


[code=php]
public class MAin {

public static void main(String[] args) {
// TODO Auto-generated method stub

int a = 1;
int b = 2;

System.out.println("a + b = " + (a + b));
System.out.println("a - b = " + (a - b));

}
}
[/code]


[code=php]
public class Main {

public static void main(String[] args) {
// TODO Auto-generated method stub

int a = 200;

System.out.println("10진수 : " + a);
System.out.format("8 진수 : %o\n", a);
System.out.format("16 진수 : %x", a);

}
}
[/code]


[code=php]
public class Main {

public static void main(String[] args) {
// TODO Auto-generated method stub
String name = "John Doe";
System.out.println(name);
System.out.println(name.substring(0,4));
System.out.println(name.substring(3,6));
System.out.println(name.substring(5,6));

}
}
[/code]


[code=php]
public class MAin {

final static int SECOND = 1000;

public static void main(String[] args) {
// TODO Auto-generated method stub

int minute = SECOND/ 60;
int second = SECOND%60;

System.out.println(minute + "분 " + second + "초");

}
}
[/code]


[code=php]
public class MAin {

public static void main(String[] args) {
// TODO Auto-generated method stub

String a = "I Dove You!";
if (a.contains("Love")) {
// 포함하는 경우 실행되는 부분
System.out.println("Me too!");
} else {
// 포함하지 않는 경우 실행되븐 부분
System.out.println("I hate you!");
}
}
}
[/code]


[code=php]
public class MAin {

final static int SECOND = 1000;

public static void main(String[] args) {
// TODO Auto-generated method stub

int a = 10;
System.out.println("현재의 a는 " + a + "입니다.");
a++;
System.out.println("현재의 a는 " + a + "입니다.");
System.out.println("현재의 a는 " + ++a + "입니다.");
System.out.println("현재의 a는 " + a++ + "입니다.");
                System.out.println("현재의 a는 " + a + "입니다.");

}
}
[/code]