Java小實例

public class Example {
	String str = new String("good");
	char[] ch = { 'a', 'b', 'c' };

	public static void main(String args[]) {
		Example ex = new Example();
		ex.change(ex.str, ex.ch);
		System.out.println(ex.str + "and");
		System.out.println(ex.ch);
	}

	public void change(String str, char[] ch) {
		str = "test ok";
		ch[0] = 'g';
	}
}

goodand
gbc

public static void main(String[] args) {
		int i=1;
		switch(i){
		case 0:
		System.out.println("zero");
		break;
		case 1:
		System.out.println("one");
		case 2:
		System.out.println("two");
		default:
		System.out.println("default");
		}
	}

one
two
default