1 public static void main(String[] args) { 2 for (int i = 0; i < 4; i++) { 3 int k; 4 switch (i) { 5 case 0: 6 try { 7 int zero = 0; 8 k = 911 / zero; 9 10 } catch (Exception ex) { 11 System.out.println("算数异常 ,分母不能为零" + ex.getMessage()); 12 } 13 break; 14 case 1: 15 try { 16 int[] b = null; 17 k = b[0]; 18 } catch (Exception ex) { 19 System.out.println("空指令异常" + ex.getMessage()); 20 } 21 break; 22 case 2: 23 try { 24 int[] c = new int[2]; 25 k = c[9]; 26 } catch (Exception ex) { 27 System.out.println("索引超出范围" + ex.getMessage()); 28 } 29 break; 30 case 3: 31 try { 32 char ch = "abc".charAt(99); 33 34 } catch (Exception ex) { 35 System.out.println("索引超出范围" + ex.getMessage()); 36 } 37 break; 38 } 39 40 } 41 42 }
结果: