多项选择题
A. String s = "Gone with the wind";String t = " good ";String k = s + t;
B. String s = "Gone with the wind";String t; t = s[3] + "one";
C. String s = "Gone with the wind";String standard = s.toUpperCase();
D. String s = "home directory";String t = s - "directory";
多项选择题 关于JAVA中数据类型描述正确的是()
单项选择题 如下代码: public void Test() { try { oneMethod(); System.out.println("condition 1"); } catch (ArrayIndexOutOfBoundsException e) { System.out.println("condition 2"); } catch(Exception e) { System.out.println("condition 3"); } finally { System.out.println("finally"); } } 如果oneMethod正常运行,则输出结果中是?()
单项选择题 执行以下代码,输出结果的结果是? () public class Test{ public String[] ss = new String[5]; public static void main(String[] args){ System.out.println(ss[1]); } }