if…else条件判断
public class Condition {
public static void main(String[] args) {
int a = 2;
if (a == 1) {
System.out.println("a等于1");
} else if (a==2) {
System.out.println("a等于2");
} else {
System.out.println("a不等于1，也不等于2");
}
}
}
switch…case
public class Condition {
public static void main(String[] args) {
int a = 2;
switch (a) {
case 1:
System.out.println("a等于1");
break;
case 2:
System.out.println("a等于2");
break;
default:
System.out.println("a不知道等于多少");
}
}
}
