public class Yippee2 { 
static public void main（String [] yahoo） { 
for（int x= 1； xSystem.out.print（yahoo[x] + “ “）； 
} 
} 
} 
and the command line invocation： java Yippee2 a b c What is the result？（） 
 

public class Yippee { 
public static void main（String [] args） { 
for（int x = 1； x < args.length； x++） { 
System.out.print（args[x] +“ “）； 
} 
} 
} 
and two separate command line invocations： 
java Yippee 
java Yippee 1234 
What is the result？（） 

Given the command line java Pass2 and： 
public class Pass2 { 
public void main（String [] args） { 
int x=6； 
Pass2 p = new Pass2（）； 
p.doStuff（x）； 
System.out.print（” main x = “+ x）；
} 
void doStuff（int x） { 
System.out.print（” doStuffx = “+ x++）； 
} 
} 
What is the result？（） 

Given a correctly compiled class whose source code is： 
package com.sun.sjcp； 
public class Commander { 
public static void main（String[] args） { 
// more code here 
} 
} 
Assume that the class file is located in /foo/com/sun/sjcp/， the current directory is /foo/， and that the classpath contains “.“ （current directory）. Which command line correctly runs Commander？（） 

11. public class Counter { 
12. public static void main（String[] args） { 
13. int numArgs = /* insert code here */； 
14. } 
15. } 
and the command line： java Counter one fred 42 Which code， inserted at line 13， captures the number of arguments passed into the program？（） 

1. interface DoStuff2 { 
2. float getRange（int low， int high）； } 
3. 
4. interface DoMore { 
5. float getAvg（int a， int b， int c）； } 
6. 
7. abstract class DoAbstract implements DoStuff2， DoMore { } 
8. 
9. class DoStuff implements DoStuff2 { 
10. public float getRange（int x， int y） { return 3.14f； } } 
11. 
12. interface DoAll extends DoMore { 
13. float getAvg（int a， int b， int c， int d）； } 
What is the result？（） 

interface DeclareStuff{ 
public static final int EASY = 3； 
void doStuff（int t）； } 
public class TestDeclare implements DeclareStuff { 
public static void main（String [] args） { 
int x=5； 
new TestDeclare（）.doStuff（++x）； 
} 
void doStuff（int s） { 
s += EASY + ++s； 
System.out.println（”s “ + s）； 
} 
} 
What is the result？（） 

Given a class Repetition： 
1. package utils； 
2. 
3. public class Repetition { 
4. public static String twice（String s） { return s + s； } 
5. } 
and given another class Demo： 
1. // insert code here
2. 
3. public class Demo { 
4. public static void main（String[] args） { 
5. System.out.println（twice（”pizza”））； 
6. } 
7. } 
Which code should be inserted at line 1 of Demo.java to compile and run Demo to print“pizzapizza”？（） 

Given a file GrizzlyBear.java： 
1. package animals.mammals； 
2. 
3. public class GrizzlyBear extends Bear { 
4. void hunt（） { 
5. Salmon s = findSalmon（）； 
6. s.consume（）； 
7. } 
8. } 
and another file， Salmon.java： 
1. package animals.fish；
2. 
3. public class Salmon extends Fish { 
4. void consume（） { /* do stuff */ } 
5. } 
Assume both classes are defined in the correct directories for theft packages， and that the Mammal class correctly defines the findSalmon（） method. Which two changes allow this code to compile correctly？（）

Given classes defined in two different files： 
1. package util； 
2. public class BitUtils { 
3. private static void process（byte[] b） { } 
4. } 
1. package app； 
2. public class SomeApp { 
3. public static void main（String[] args） { 
4. byte[] bytes = new byte[256]； 
5. // insert code here 
6. } 
7. } 
What is required at line 5 in class SomeApp to use the process method of BitUtils？（）