Java学习——增强for循环、switch

增强for循环

public class ForTest {
public static void main(String args[]){
int [] numbers = {1, 3, 5, 7, 2, 4, 6, 8};
for (int x: numbers){
System.out.print(x);
System.out.print(",");
}
System.out.println();

String [] names = {"Jihite", "David", "Tom"};
for (String name: names){
System.out.print(name);
System.out.print(',');
}
}
}

1,3,5,7,2,4,6,8,
Jihite,David,Tom,

switch

public class ForTest {

public static void main(String args[]){
//char grade = args[0].charAt(0);
char grade = 'B';

switch(grade)
{
case 'A' :
System.out.println("Excellent!");
break;
case 'B' :
case 'C' :
System.out.println("Well done");
break;
case 'D' :
System.out.println("You passed");
case 'F' :
System.out.println("Better try again");
break;
default :
System.out.println("Invalid grade");
}
System.out.println("Your grade is " + grade);
}
}