문자열 결합

문자열 + any type -> 문자열 + 문자열 -> 문자열

any type + 문자열 -> 문자열 + 문자열 -> 문자열

public class Ex2_7 {

	public static void main(String[] args) {
		String name = "Ja" + "va";
		String str  = name + 8.0;
		
		System.out.println(name);
		System.out.println(str);
		System.out.println(7 + " ");
		System.out.println(" " + 7);
		System.out.println(7 + "");
		System.out.println("" + 7);
		System.out.println("" + "");
		System.out.println(7 + 7 + "");
		System.out.println("" + 7 + 7);
	}

}