單項(xiàng)選擇題

public class ArrayTest {
public static void main （Stringargs） {
float f1， f2；
f1 = new float [10]；
f2 = f1；
System.out.printIn （“f2[0]=” + f2[0]）；
}
}
What is the result？（）

A. It prints f2[0] = 0.0
B. It prints f2[0] = NaN
C. An error at line 5 causes compile to fail.
D. An error at line 6 causes compile to fail.
E. An error at line 6 causes an exception at runtime.

你可能感興趣的試題

單項(xiàng)選擇題

ClassOne.java
package com.abc.pkg1；
public class ClassOne {
private char var = ‘a‘；
char getVar（） {return var；}
}
ClassTest.java
package com.abc.pkg2；
import com.abc.pkg1.ClassOne；
public class ClassTest extends ClassOne {
public static void main（Stringargs） {
char a = new ClassOne（）.getVar（）；
char b = new ClassTest（）.getVar（）；
}
}
What is the result？（）

A. Compilation will fail.
B. Compilation succeeds and no exceptions are thrown.
C. Compilation succeeds but an exception is thrown at line 5 in ClassTest.java.
D. Compilation succeeds but an exception is thrown at line 6 in ClassTest.java.

單項(xiàng)選擇題

You want to limit access to a method of a public class to members of the same class. Which access modifier accomplishes this objective？（）

A. Public
B. Private
C. Protected
D. Transient
E. No access modifier is required

public class ArrayTest { public static void main （Stringargs） { float f1， f2； f1 = new float [10]； f2 = f1； System.out.printIn （“f2[0]=” + f2[0]）； } } What is the result？（）

你可能感興趣的試題

You want to limit access to a method of a public class to members of the same class. Which access modifier accomplishes this objective？（）

public class ArrayTest {
public static void main （Stringargs） {
float f1， f2；
f1 = new float [10]；
f2 = f1；
System.out.printIn （“f2[0]=” + f2[0]）；
}
}
What is the result？（）

You want to limit access to a method of a public class to members of the same class. Which access modifier accomplishes this objective？（）