1Z0-803 무료 덤프문제 온라인 액세스

Given:
public class ColorTest {
public static void main(String[] args) {
String[] colors = {"red", "blue","green","yellow","maroon","cyan"};
int count = 0;
for (String c : colors) {
if (count >= 4) {
break;
}
else {
continue;
}
if (c.length() >= 4) {
colors[count] = c.substring(0,3);
}
count++;
}
System.out.println(colors[count]);
}
}
What is the result?

• A.Maroon
• B.A StringIndexOutOfBoundsException is thrown at runtime.
• C.Compilation fails
• D.Yellow

Given the for loop construct:
for ( expr1 ; expr2 ; expr3 ) {
statement;
}
Which two statements are true?

• A.The expression expr3 must be present. It is evaluated after each iteration through the loop.
• B.When expr2 evaluates to false, the loop terminates. It is evaluated only after each iteration through the loop.
• C.The expression expr1 is optional. it initializes the loop and is evaluated once, as the loop begin.
• D.This is not the only valid for loop construct; there exits another form of for loop constructor.

Given the code fragment:

• A.Compilation fails at line n1
• B.Compilation fails at line n2
• C.Super Sub Sub
• D.Contract Contract Super

Which statement will empty the contents of a StringBuilder variable named sb?

• A.sb.delete(0, sb.size());
• B.sb.delete(0, sb.length());
• C.sb.deleteAll();
• D.sb.removeAll();

Given the code fragment:
String name = "Spot";
int age = 4;
String str ="My dog " + name + " is " + age;
System.out.println(str);
And
StringBuilder sb = new StringBuilder();
Using StringBuilder, which code fragment is the best potion to build and print the following string My dog Spot is 4

• A.sb.append("My dog ").append( name ).append(" is " ).append(age); System.out.println(sb);
• B.sb.insert("My dog ").insert( name ).insert(" is " ).insert(age); System.out.println(sb);
• C.sb.insert("My dog ").append( name + " is " + age); System.out.println(sb);
• D.sb.append("My dog " + name + " is " + age); System.out.println(sb);