DTR100参数“AF Line OUT Pri”设定为-10.0dBm,表示()。
第1题:
当你编译运行下列程序代码,会得到什么结果?
private class Base{ Base(){ int i = 100; System.out.println(i); } }
public class Pri extends Base{ staticint i = 200;
public static void main(String argv[]){ Pri p = new Pri(); System.out.println(i); } }
A.这段代码不能通过编译
B.输出200
C.输出100和200
D.输出100
第2题:
遥控台主/备DTR100ALB-S卡之间的“SWD”口用信号线相连,其作用是()。
第3题:
Given the following code fragment: 1) String str = null; 2) if ((str != null) && (str.length() > 10)) { 3) System.out.println("more than 10"); 4) } 5) else if ((str != null) & (str.length() < 5)) { 6) System.out.println("less than 5"); 7) } 8) else { System.out.println("end"); } Which line will cause error?()
第4题:
1. class Bar { } 1. class Test { 2. Bar doBar() { 3. Bar b = new Bar(); 4. return b; 5. } 6. public static void main (String args[]) { 7. Test t = new Test(); 8. Bar newBar = t.doBar(); 9. System.out.println(“newBar”); 10. newBar = new Bar(); 11. System.out.println(“finishing”); 12. } 13. } At what point is the Bar object, created on line 3, eligible for garbage collection?()
第5题:
DTR100参数“AF Line In Pri”设置为-10dBm。若输入音频电平小于245mV,可能会出现发射机调制度不足。
第6题:
DTR100BB组件“ACTIVE”指示灯熄灭就表明该DTR100()。
第7题:
DTR100的BB模块LED指示为黄色表示():
第8题:
通过LMT将参数“TX Timeout”设置为“0”,则()
第9题:
Compilation of class A fails.
Line 28 prints the value 3 to System.out.
Line 28 prints the value 1 to System.out.
A runtime error occurs when line 25 executes.
Compilation fails because of an error on line 28.
第10题:
Compilation of class A fails.
Line 28 prints the value 3 to System.out.
Line 28 prints the value 1 to System.out.
A runtime error occurs when line 25 executes.
Compilation fails because of an error on line 28.
第11题:
After line 8.
After line 10.
After line 4, when doBar() completes.
After line 11, when main() completes.
第12题:
Compilation of class A fails.
Line 28 prints the value 3 to System.out.
Line 28 prints the value 1 to System.out.
A runtime error occurs when line 25 executes.
Compilation fails because of an error on line 28.
第13题:
A.编译错误
B.200
C.100200
D.100
第14题:
发射状态时,遥控台DTR100选择主AF线还是备AF线是()。
第15题:
1. public class A { 2. 3. private int counter = 0; 4. 5. public static int getInstanceCount() { 6. return counter; 7. } 8. 9. public A() { 10. counter++; 11. } 12. 13. } Given this code from Class B: 25.A a1 =new A(); 26. A a2 =new A(); 27. A a3 =new A(); 28. System.out.printIn(A.getInstanceCount() ); What is the result?()
第16题:
DTR100 BB组件“ACTIVE”指示灯熄灭就表明该DTR100与AF线断开连接。
第17题:
DTR100 BB组件“ACTIVE”指示灯熄灭就表明该DTR100()
第18题:
若DTR100前面板“AUDIO”口插入耳机话筒组,()面板喇叭被静音。
第19题:
通过LMT将参数“TXTimeout”设置为“0”,则()。
第20题:
Take in stern line .
Pay out stern line .
Heave in stern line .
Take in the slack on stern line .
第21题:
Line 26 prints "a" to System.out.
Line 26 prints "b" to System.out.
An exception is thrown at line 26 at runtime.
Compilation of class A will fail due to an error in line 6.
第22题:
line 1
line 2
line 5
line 8
第23题:
foreach(x) System.out.println(z);
for(int z : x) System.out.println(z);
while( x.hasNext()) System.out.println( x.next());
for( int i=0; i< x.length; i++ ) System.out.println(x[i]);