10. public class Bar {
11.static void foo(int...x) {
12. // insert code here
13. }
14. }
Which two code fragments, inserted independently at line 12, will allow the class to compile?()
A. foreach(x) System.out.println(z);
B. for(int z : x) System.out.println(z);
C. while( x.hasNext()) System.out.println( x.next());
D. for( int i=0; i< x.length; i++ ) System.out.println(x[i]);
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11. public interface Status {
12. /* insert code here */ int MY_VALUE = 10;
13. }
Which three are valid on line 12?()
A. final
B. static
C. native
D. public
E. private
F. abstract
G. protected
Given the following code:
1) class Parent {
2) private String name;
3) public Parent(){}
4) }
5) public class Child extends Parent {
6) private String department;
7) public Child() {}
8) public String getValue(){ return name; }
9) public static void main(String arg[]) {
10) Parent p = new Parent();
11) }
12) }
Which line will cause error?()
A. line 3
B. line 6
C. line 7
D. line 8
E. line 10
A. FlowLayout
B. CardLayout
C. North and South of BorderLayout
D. East and West of BorderLayout
E. GridLayout
class Parent {
String one, two;
public Parent(String a, String b){
one = a;
two = b; }
public void print(){ System.out.println(one); } }
public class Child extends Parent {
public Child(String a, String b){
super(a,b);
}
public void print(){
System.out.println(one + " to " + two);
}
public static void main(String arg[]){
Parent p = new Parent("south", "north");
Parent t = new Child("east", "west");
p.print();
t.print();
}
}
Which of the following is correct?()
A. Cause error during compilation.
B. south east
C. south to north east to west
D. south to north east
E. south east to west
public class Parent {
int change() {…}
}
class Child extends Parent {
}
Which methods can be added into class Child?()
A. public int change(){}
B. int chang(int i){}
C. private int change(){}
D. abstract int chang(){}
A. long l = 4990;
B. int i = 4L;
C. float f = 1.1;
D. double d = 34.4;
E. double t = 0.9F;
String s= "hello";
String t = "hello";
char c[] = {’h’,’e’,’l’,’l’,’o’} ;
Which return true?()
A. s.equals(t);
B. t.equals(c);
C. s==t;
D. t.equals(new String("hello"));
E. t==c;
A. char str[];
B. char str[][];
C. String str[];
D. String str[10];
A. public int MAX_LENGTH=100;
B. final int MAX_LENGTH=100;
C. final public int MAX_LENGTH=100;
D. public final int MAX_LENGTH=100;
A. private
B. no modifier
C. public
D. protected
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Which statement is true about the set variable on line 12?()
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A programmer must create a generic class MinMax and the type parameter of MinMax must implement Comparable. Which implementation of MinMax will compile?()
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