【单选题】下列程序的输出是:a=[1,2,3,4,[5,6],[7,8,9]]s=0for f in a: if type(f)==list: for e in f: s=s+e*len(f) else: s+=f*fprint(s)
【单选题】现有: 1 . class Test4 { 2. public static void main (String [] args) { 3 . boolean X=true; 4 . boolean y=false; 5 . short Z=42; 6 . 7. if((z++==42) && (y=true))z++; 8.if((x=false) || (++z...
【多选题】Class TestException 1. public class TestException extends Exception { 2. } Class a: 1. public class a { 2. 3. public String sayHello(String name) throws TestException { 4. 5. if(name == null) {...
A.
Class a will not compile.
B.
Line 46 can throw the unchecked exception TestException.
C.
Line 45 can throw the unchecked exception TestException.
D.
Line 46 will compile if the enclosing method throws a TestException.
E.
Line 46 will compile if enclosed in a try block, where TestException is caught.
【单选题】现有: 1. class Test4 { 2. public static void main (String [] args) { 3. boolean X=true; 4. boolean y=false; 5. short Z=42; 6. if((z++==42) && (y=true))z++; 7 . i...