Java 7新特性: switch中对String的支持

在Java6或更低版本

String color = "red";
if (color.equals("red")) {
System.out.println("Color is Red");
} else if (color.equals("green")) {
System.out.println("Color is Green");
} else {
System.out.println("Color not found");
}

使用Java7

String color = "red";
switch (color) {
case "red":
System.out.println("Color is Red");
break;
case "green":
System.out.println("Color is Green");
break;
default:
System.out.println("Color not found");
}

结论