1Z1-803 無料問題集「Oracle Java SE 7 Programmer I」

Given:
package p1;
public class Test {
static double dvalue;
static Test ref;
public static void main(String[] args) {
System.out.println(ref);
System.out.println(dvalue);
}
}
What is the result?

解説: (JPNTest メンバーにのみ表示されます)
Which three statements are true about the structure of a Java class?

正解:B、E、F 解答を投票する
解説: (JPNTest メンバーにのみ表示されます)
You are writing a method that is declared not to return a value. Which two are permitted in the method body?

正解:B、C 解答を投票する
解説: (JPNTest メンバーにのみ表示されます)
Given:

What is the result?

解説: (JPNTest メンバーにのみ表示されます)
Given the code fragment:
System.out.printIn("Result: " + 2 + 3 + 5); System.out.printIn("Result: " + 2 + 3 * 5);
What is the result?

解説: (JPNTest メンバーにのみ表示されます)
Give:
Public Class Test {
}
Which two packages are automatically imported into the java source file by the java compiler?

正解:A、C 解答を投票する
解説: (JPNTest メンバーにのみ表示されます)
Given the code fragment:

Which code fragment, when inserted at // insert code here, enables the code to compile and and print a b c?

Given:
interface Pet { }
class Dog implements Pet { }
public class Beagle extends Dog{ }
Which three are valid?

正解:B、D、F 解答を投票する
解説: (JPNTest メンバーにのみ表示されます)
Which statement will empty the contents of a StringBuilder variable named sb?

Given:
public class X {
static int i;
int j;
public static void main(String[] args) {
X x1 = new X();
X x2 = new X();
x1.i = 3;
x1.j = 4;
x2.i = 5;
x2.j = 6;
System.out.println(
x1.i + " "+
x1.j + " "+
x2.i + " "+
x2.j);
} } What is the result?

Given:
public class TestField { int x; int y; public void doStuff(int x, int y) { this.x = x; y =this.y; } public void display() { System.out.print(x + " " + y + " : "); } public static void main(String[] args) { TestField m1 = new TestField(); m1.x = 100; m1.y = 200;
TestField m2 = new TestField();
m2.doStuff(m1.x, m1.y);
m1.display();
m2.display();
}
}
What is the result?

Given:

What is the result?

Given:
class X {}
class Y { Y ( ) { } }
class Z { Z (int i ) { } }
Which class has a default constructor?

Given:

Given the code fragment:

What is the result?

解説: (JPNTest メンバーにのみ表示されます)
Given the code fragment: What is the result?

Given the code fragment:
System.out.printIn ("Result: " +3+5);
System.out.printIn ("Result: " + (3+5));
What is the result?

解説: (JPNTest メンバーにのみ表示されます)
The catch clause argument is always of type__________.

解説: (JPNTest メンバーにのみ表示されます)

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