JAVA认证历年真题：310-025精选题（27）

会计考友 · 发表于 2012-8-4 12:33:16

91. Which number for the argument must you us e for the code to print cat?
With the command:
java Prog cat dog mouse
public class Prog {
public static void main(String args[]) {
System.out.println(args[?]) ;
}
}
A. 0
B. 1
C. 2
D. 3
E. none of these
A.
92. You have the following code:
.......
String s;
s = "Hello";
t = " " + "my";
s.append(t);
s.toLowerCase();
s+= " friend";
System.out.println(s);
What will be printed?
Answer:
hello my friend

会计考友 · 发表于 2012-8-4 12:33:17

93. What will happen when you attempt to compile and run this code?
public class MySwitch{
public static void main(String argv[]) {
MySwitch ms = new MySwitch(;
ms.amethod();
}
public void amethod() {
char k=10;
switch(k){
default:
System.out.println("This is the default output");
break;
case 10:
System.out.println("ten");
break;
case 20:
System.out.println("twenty");
break;
}
}
}
A. None of these options
B. Compile time error target of switch must be an integral type
C. Compile and run with output "This is the default output"
D. Compile and run with output "ten"
D.
94. What will happen when you attempt to compile and run the following code?
public class MySwitch{
public static void main(String argv[]) {
MySwitch ms = new MySwitch();
ms.amethod();
}
public void amethod() {
int k=10;
switch (k){
default: //Put the default at the bottom, not here
System.out.println("This is the default output");
break;
case 10:
System.out.println("ten");
case 20:
System.out.println("twenty");
break;
}
}
}
A. None of these options
B. Compile time error target of switch must be an integral type
C. Compile and run with output "This is the default output
D. Compile and run with output "ten"
A.

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[考试试题] JAVA认证历年真题：310-025精选题（27）

JAVA认证历年真题：310-025精选题（27）

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