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单选题
现有: class Banana2 f static int X=2; public static void main (String [] args) { int X=2; Banana2 b=new Banana2(); b.go(x); } static {x+=x; } void go (int x) { ++x; System. out.println (x); } 结果为:()
A
7
B
5
C
3
D
2
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更多 “单选题现有: class Banana2 f static int X=2; public static void main (String [] args) { int X=2; Banana2 b=new Banana2(); b.go(x); } static {x+=x; } void go (int x) { ++x; System. out.println (x); } 结果为:()A 7B 5C 3D 2” 相关考题
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下面程序段的输出结果为 package test; public class A { int x=20; static int y=6; public static void main(String args[]) { Class B b=new Class B(); b.go(10); System.out.println(”x=”+b.x); } } class Class B { int x; void go(int y) { ClassA a=new ClassA(); x=a.y; } }A.x=10B.x=20C.x=6D.编译不通过
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现有: class TestMain { static int x = 2; static { x = 4; } static public void main(String[] args) { int y = x + 1; System.out.println(y); } } 和命令行: java TestMain 结果为:() A、 3B、 5C、 编译失败D、 运行时异常被抛出
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现有: 1.class Passer f 2.static final int X=5; 3.public static void main (String [] args) { 4.new Passer( ).go (x); 5.System. out .print (x); 6. ) 7.void go (int x) { 8.System. out .print(x++); 9.} 10.}结果是什么?()A、55B、56C、65D、66
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class Top { static int x = 1; public Top(int y) { x *= 3; } } class Middle extends Top { public Middle() { x += 1; } public static void main(String [] args) { Middle m = new Middle(); System.out.println(x); } } 结果为:() A、1B、2C、3D、编译失败
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class TestMain { static int x = 2; static { x = 4; } static public void main(String[] args) { int y = x + 1; System.out.println(y); } } 和命令行: java TestMain 结果为:()A、 3B、 5C、 编译失败D、 运行时异常被抛出
考题
现有: class Top { static int x=l; public Top (inty) { x*=3; } } class Middle extends Top { public Middle() {x+=1; ) public static void main (String [] args) { Middle m = new Middle(); System. out .println (x); } } 结果为:() A、1B、2C、3D、编译失败
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class TestMain { static int x = 2; static { x = 4; } public static void main(String... args) { int y = x + 1; System.out.println(y); } } 和命令行: java TestMain 结果为:() A、 3B、 5C、 编译失败D、 运行时异常被抛出
考题
单选题现有: class Top { static int X=l; public Top() { x*=3; } } class Middle extends Top { public Middle() {x+=l; } public static void main(String [] args) { Middle m=new Middle(); System.out.println (x); } } 结果是什么?()A
2B
3C
4D
编译失败
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单选题public class TestSeven extends Thread { private static int x; public synchronized void doThings() { int current = x; current++; x = current; } public void run() { doThings(); } } Which is true?()A
Compilation fails.B
An exception is thrown at runtime.C
Synchronizing the run() method would make the class thread-safe.D
The data in variable “x” are protected from concurrent access problems.E
Declaring the doThings() method as static would make the class thread-safe.F
Wrapping the statements within doThings() in a synchronized(new Object()) {} block would make the class thread-safe.
考题
单选题class TestMain { static int x = 2; static { x = 4; } public static void main(String... args) { int y = x + 1; System.out.println(y); } } 和命令行: java TestMain 结果为:()A
3B
5C
编译失败D
运行时异常被抛出
考题
单选题现有: class TestMain { static int x = 2; static { x = 4; } public static void main(String... args) { int y = x + 1; System.out.println(y); } } 和命令行: java TestMain 结果为:()A
3B
5C
编译失败D
运行时异常被抛出
考题
单选题现有: class Passer f static final int X=5; public static void main (String [] args) { new Passer().go (x); System. out .print (x); } void go (int x) { System. out .print(x++); } 结果是什么?()A
55B
56C
65D
66
考题
单选题现有: class TestMain { static int x = 2; static { x = 4; } static public void main(String[] args) { int y = x + 1; System.out.println(y); } } 和命令行: java TestMain 结果为:()A
3B
5C
编译失败D
运行时异常被抛出
考题
单选题现有: class Top { static int x=l; public Top (inty) { x*=3; } } class Middle extends Top { public Middle() {x+=1; ) public static void main (String [] args) { Middle m = new Middle(); System. out .println (x); } } 结果为:()A
1B
2C
3D
编译失败
考题
多选题现有: public class TestDemo{ private int X-2; static int y=3; public void method(){ final int i=100; int j =10; class Cinner { public void mymethod(){ //Here } } } } 在Here处可以访问的变量是哪些?()AXByCjDi
考题
单选题现有: class Banana2 f static int X=2; public static void main (String [] args) { int X=2; Banana2 b=new Banana2(); b.go(x); } static {x+=x; } void go (int x) { ++x; System. out.println (x); } 结果为:()A
7B
5C
3D
2
考题
多选题public class TestDemo{ private int x = 2; static int y = 3; public void method(){ final int i=100; int j = 10; class Cinner{ public void mymethod(){ //Here } } } } 在Here处可以访问的变量是哪些?()AxByCiDj
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