单项选择题
A. x = 6 y = 0
B. x = 7 y = 0
C. x = 6 y = -1
D. x = 7 y = -1
E. Compilation fails.
单项选择题 Whatallowstheprogrammertodestroyanobjectx?()
单项选择题 1. public class Outer{ 2. public void someOuterMethod() { 3. // Line 3 4. } 5. public class Inner{} 6. public static void main( String[]argv ) { 7. Outer o = new Outer(); 8. // Line 8 9. } 10. } Which instantiates an instance of Inner?()
单项选择题 1. public class ReturnIt { 2. return Type methodA(byte x, double y) { 3. return (short)x / y * 2; 4. } 5. } What is the narrowest valid returnType for methodA in line2?()