java 条件语句

/**
 * java 条件语句
 */
public class learn_8 {
    public static void main(String[] args) {
        //if
        int a = 10;
        int b = 20;
        if (a > b) {
            System.out.println("a>b1");
        }

        if (a > b) {
            System.out.println("a>b2");
        }else{
            System.out.println("a<b2");
        }

        int i = 5;
        switch(i){
            case 0:
                System.out.println("0");
            case 1:
                System.out.println("1");
            case 2:
                System.out.println("2");
            default:
                System.out.println("default");
        }
    }
}