deeprun

숫자

자바에서는 따옴표가 없는 숫자는 숫자로 인식한다.

package org.opentutorials.javatutorials.numberstring;

public class Number {

	public static void main(String[] args) {
		System.out.println(1+2);          //result:3
		System.out.println(4+2);	  //result:6
		System.out.println(1.2+1.3);      //result:2.5
		System.out.println(2*5);	  //result:10	
		System.out.println(6/2);	  //result:3	
	}
}

문자열

package org.opentutorials.javatutorials.numberstring;

public class CharString {

	public static void main(String[] args) {
		System.out.println('생');      
		System.out.println("생");
		//System.out.println('생활코딩'); //result: error
		System.out.println("생활코딩");
		System.out.println("생활코딩"+"입니다");
		System.out.println(1+1);
		System.out.println("1"+"1");
	}
}

이스케이프

package org.opentutorials.javatutorials.numberstring;

public class CharString {

	public static void main(String[] args) {

		System.out.println("egoing said\" Welcome programming world\"");
	}
}