public class SwitchDemo {public static void main(String[] args) {int type = 4;switch (type) {default:System.out.println(4);case 1:System.out.println(1);case 2:System.out.println(2);break;case 3:System.out.println(3);}}
}
參考答案
4
1
2 public class SwitchDemo2 {public static void main(String[] args) {int x = 5;switch (x) {case 1:System.out.println("A");break;case 2:System.out.println("B");break;default:System.out.println("結束");case 3:System.out.println("C");break;case 4:System.out.println("D");break;}}
}
參考答案
結束
C public class SwitchDemo3 {public static void main(String[] args) {System.out.println(getValue(2));}public static int getValue(int i) {int result = 0;switch (i) {default:System.out.println("default");case 1:result = result + i;case 2:result = result + i * 2;case 3:result = result + i * 3;}return result;}
}
參考答案
10 public class SwitchDemo4 {public static void main(String[] args) {byte a = 4;switch (a) {default:System.out.println("default");case 1:System.out.println("A");case 2:System.out.println("B");case 3:System.out.println("C");break;case 4:System.out.println("D");}}
}
Number of Days = 29 public class SwitchDemo6 {public static void main(String[] args) {int number = 20;// switch expression with int valueswitch (number) {// switch cases without break statementscase 10:System.out.println("10");case 20:System.out.println("20");case 30:System.out.println("30");default:System.out.println("Not in 10, 20 or 30");}}
}
參考答案
20
30
Not in 10, 20 or 30 public class SwitchDemo7 {public static void main(String args[]) {// Byte age = 18;// Short age = 18;// Character age = 18;Integer age = 18;switch (age) {case (16):System.out.println("You are under 18.");break;case (18):System.out.println("You are eligible for vote.");break;case (65):System.out.println("You are senior citizen.");break;default:System.out.println("Please give the valid age.");break;}}
}
