6. 변수 설정(int, double, String)

1. intger(정수)

package org.opentutorials.javatutorials.variables;

public class Integer {
    public static void main(String[] args) {
        int a;
        a = 1;
        System.out.println(a+1);
    }
}

• data type int 정수 지정

2. Double(실수)

package org.opentutorials.javatutorials.variables;

public class Double {
    public static void main(String[] args) {
        double a = 1.1;
        System.out.println(a);
    }
}

• double 실수 형식 지정

2. String(문자)

package org.opentutorials.javatutorials.variables;

public class StringDemo {

    public static void main(String[] args) {
        String sFirst = "한글";
        System.out.println(sFirst+" "+"everybody");
        String a, b;
        a = "coding";
        b = " everybody";
        System.out.println(a+b);
    }

}

• 문자열 형식 지정