public class Test{ public static void main(String[]args){ intx=5; boolean b1=true; boolean b2=false; if((x==4)!b2) System.out.print("l"); System.out.print("2"); if((b2=true)b1) System.out.print("3"); } } What is the result?()A、2B、3C、12D、23E、123F、Compilation fails.G、An exceptional ist hrown at runtime.
public class Test{ public static void main(String[]args){ intx=5; boolean b1=true; boolean b2=false; if((x==4)&&!b2) System.out.print("l"); System.out.print("2"); if((b2=true)&&b1) System.out.print("3"); } } What is the result?()
- A、2
- B、3
- C、12
- D、23
- E、123
- F、Compilation fails.
- G、An exceptional ist hrown at runtime.
相关考题:
以下程序段输出结果为( )。 class test_1 { public static void main(String args[]) { int x=0; boolean b1,b2,b3,b4; b1=b2=b3=b4=true; x=(b1|b2b3^b4)?x++:--x; System.out.println(x); } }A.1B.0C.2D.3
public class Test{public static void main(String[]args){intx=5;boolean b1=true;boolean b2=false;if((x==4)!b2)System.out.print(l);System.out.print(2);if((b2=true)b1)System.out.print(3);}}What is the result?()A.2B.3C.12D.23E.123F.Compilation fails.G.An exceptional ist hrown at runtime.
publicclassTest{publicstaticvoidmain(String[]args){intx=5;booleanb1=true;booleanb2=false;if((x==4)!b2)System.out.print(”l);System.out.print(”2);if((b2=true)b1)System.out.print(”3);}}Whatistheresult?()A.2B.3C.12D.23E.123F.Compilationfails.G.Auexceptionalisthrownatruntime.
以下程序段输出结果为( )。 class test_1 { public static void main(String args[]) { int x=0; boolean bl,b2,b3,b4; b1=b2=b3=b4=true; x=(b1|b2b3^b4)?x++:--x; System.out.println(x); } }A.1B.0C.2D.3
下列代码的执行结果是______。 public class ex55 { public static void main(String args[] ) { String s1=new String("hello"); String s2=new String("hello"); System.out.print (s1==s2); System.out.print (","); System.out.println (s1.equals (s2)); } }A.true, falseB.true, trueC.false, trueD.false, false
下列选项中,哪个是程序的运行结果class Test{public static void main(String[] args) {int a = 3;int b = 6;System.out.print(a==b);System.out.print(aSystem.out.print(a!=b);System.out.print(a>=b);}} A.false false true falseB.false false true trueC.false true true falseD.true false false true
class One { public One() { System.out.print(1); } } class Two extends One { public Two() { System.out.print(2); } } class Three extends Two { public Three() { System.out.print(3); } } public class Numbers{ public static void main( String[] argv) { new Three(); } } What is the result when this code is executed?() A、 1B、 3C、 123D、 321E、 The code rims with no output.
现有: class Waiting implements Runnable { boolean flag=false; public synchronized void run() { if (flag) { flag=false; System.out.print ("1"); try { this.wait(); ) catch (Exception e) { } System.out.print ("2"); } else { flag=true; System.out.print ("3"); try{Thread.sleep (2000); } catch(Exception e) {} System.out.print ("4"); notify(); } } public static void main (String [] args) { Waiting w=new Waiting(); new Thread (w) .start(); new Thread (w) .start(); } } 以下哪两项是正确的?() A、代码输出l 3 4B、代码输出3 4 1C、代码输出l 2 3 4D、代码输出1 3 4 2E、代码运行完毕F、代码不会完成
public class Test { public static void main(String [] args) { int x =5; boolean b1 = true; boolean b2 = false; if((x==4) !b2) System.out.print(”l “); System.out.print(”2 “); if ((b2 = true) b1) System.out.print(”3 “); } } What is the result?() A、 2B、 3C、 1 2D、 2 3E、 1 2 3F、 Compilation fails.G、 Au exceptional is thrown at runtime.
public class Base { public static final String FOO = “foo”; public static void main(String[] args) { Base b = new Base(); Sub s = new Sub(); System.out.print(Base.FOO); System.out.print(Sub.FOO); System.out.print(b.FOO); System.out.print(s.FOO); System.out.print(((Base)s).FOO); } } class Sub extends Base {public static final String FOO=bar;} What is the result?() A、 foofoofoofoofooB、 foobarfoobarbarC、 foobarfoofoofooD、 foobarfoobarfooE、 barbarbarbarbarF、 foofoofoobarbarG、 foofoofoobarfoo
static void test() { try { String x=null; System.out.print(x.toString() +“ “); } finally { System.out.print(“finally “); } } public static void main(String[] args) { try { test(); } catch (Exception ex) { System.out.print(”exception “); } } What is the result?() A、 nullB、 finallyC、 null finallyD、 Compilation fails.E、 finally exception
public class X { public static void main(String [] args) { try { badMethod(); System.out.print(“A”); } catch (Exception ex) { System.out.print(“B”); } finally { System.out.print(“C”); } System.out.print(“D”); } public static void badMethod() {} } What is the result?() A、 ACB、 BDC、 ACDD、 ABCDE、 Compilation fails.
public class Delta { static boolean foo(char c) { System.out.print(c); return true; } public static void main( String[] argv ) { int i =0; for ( foo(‘A’); foo(‘B’)(i2); foo(‘C’)){ i++ ; foo(‘D’); } } } What is the result?() A、 ABDCBDCBB、 ABCDABCDC、 Compilation fails.D、 An exception is thrown at runtime.
public class X { public static void main (Stringargs) { String s1 = new String (“true”); Boolean b1 = new Boolean (true); if (s2.equals(b1)) { System.out.printIn(“Equal”); } } } What is the result? () A、 The program runs and prints nothing.B、 The program runs and prints “Equal”C、 An error at line 5 causes compilation to fail.D、 The program runs but aborts with an exception.
public class X { public static void main (String[]args) { String s1 = new String (“true”); Boolean b1 = new Boolean (true); if (s2.equals(b1)) { System.out.printIn(“Equal”); } } } What is the result?() A、 The program runs and prints nothing.B、 The program runs and prints “Equal”C、 An error at line 5 causes compilation to fail.D、 The program runs but aborts with an exception.
class Waiting implements Runnable { boolean flag = false; public synchronized void run() { if (flag) { flag = false; System.out.print("1 "); try { this.wait(); } catch (Exception e) { } System.out.print("2 "); } else { flag = true; System.out.print("3 "); try { Thread.sleep(2000); } catch (Exception e) { } System.out.print("4 "); notify(); } } public static void main(String [] args) { Waiting w = new Waiting(); new Thread(w).start(); new Thread(w).start (); } } 以下哪两项是正确的?() A、代码输出 1 3 4B、代码输出 3 4 1C、代码输出 1 2 3 4D、代码不会完成
public class X { public static void main(String [] args) { try { badMethod(); System.out.print(“A”); } catch (RuntimeException ex) { System.out.print(“B”); } catch (Exception ex1) { System.out.print(“C”); } finally { System.out.print(“D”); } System.out.print(“E”); } public static void badMethod() { throw new RuntimeException(); } } What is the result?() A、 BDB、 BCDC、 BDED、 BCDEE、 ABCDEF、 Compilation fails.
public class X { public static void main(String [] args) { try { badMethod(); System.out.print(“A”); } catch (Exception ex) { System.out.print(“B”); } finally { System.out.print(“C”); } System.out.print(“D”); } public static void badMethod() { throw new RuntimeException(); } } What is the result? () A、 ABB、 BCC、 ABCD、 BCDE、 Compilation fails.
static void test() throws Error { if (true) throw new AssertionError(); System.out.print(”test “); } public static void main(String[] args) { try { test(); } catch (Exception ex) { System.out.print(”exception “); } System.out.print(”elld “); } What is the result?() A、 endB、 Compilation fails.C、 exception endD、 exception test endE、 A Throwable is thrown by main.F、 An Exception is thrown by main.
单选题public class X { public static void main(String [] args) { try { badMethod(); System.out.print(“A”); } catch (RuntimeException ex) { System.out.print(“B”); } catch (Exception ex1) { System.out.print(“C”); } finally { System.out.print(“D”); } System.out.print(“E”); } public static void badMethod() { throw new RuntimeException(); } } What is the result?()A BDB BCDC BDED BCDEE ABCDEF Compilation fails.
单选题static void test() { try { String x=null; System.out.print(x.toString() +“ “); } finally { System.out.print(“finally “); } } public static void main(String[] args) { try { test(); } catch (Exception ex) { System.out.print(”exception “); } } What is the result?()A nullB finallyC null finallyD Compilation fails.E finally exception
多选题class Waiting implements Runnable { boolean flag = false; public synchronized void run() { if (flag) { flag = false; System.out.print("1 "); try { this.wait(); } catch (Exception e) { } System.out.print("2 "); } else { flag = true; System.out.print("3 "); try { Thread.sleep(2000); } catch (Exception e) { } System.out.print("4 "); notify(); } } public static void main(String [] args) { Waiting w = new Waiting(); new Thread(w).start(); new Thread(w).start (); } } 以下哪两项是正确的?()A代码输出 1 3 4B代码输出 3 4 1C代码输出 1 2 3 4D代码不会完成
单选题public class X { public static void main (String[]args) { String s1 = new String (“true”); Boolean b1 = new Boolean (true); if (s2.equals(b1)) { System.out.printIn(“Equal”); } } } What is the result?()A The program runs and prints nothing.B The program runs and prints “Equal”C An error at line 5 causes compilation to fail.D The program runs but aborts with an exception.
单选题public class Delta { static boolean foo(char c) { System.out.print(c); return true; } public static void main( String[] argv ) { int i =0; for ( foo(‘A’); foo(‘B’)(i2); foo(‘C’)){ i++ ; foo(‘D’); } } } What is the result?()A ABDCBDCBB ABCDABCDC Compilation fails.D An exception is thrown at runtime.
单选题public class X { public static void main(String [] args) { try { badMethod(); System.out.print(“A”); } catch (Exception ex) { System.out.print(“B”); } finally { System.out.print(“C”); } System.out.print(“D”); } public static void badMethod() { throw new RuntimeException(); } } What is the result? ()A ABB BCC ABCD BCDE Compilation fails.
单选题public class Test{ public static void main(String[]args){ intx=5; boolean b1=true; boolean b2=false; if((x==4)!b2) System.out.print("l"); System.out.print("2"); if((b2=true)b1) System.out.print("3"); } } What is the result?()A2B3C12D23E123FCompilation fails.GAn exceptional ist hrown at runtime.
单选题public class Test { public static void main(String [] args) { int x =5; boolean b1 = true; boolean b2 = false; if((x==4) !b2) System.out.print(”l “); System.out.print(”2 “); if ((b2 = true) b1) System.out.print(”3 “); } } What is the result?()A 2B 3C 1 2D 2 3E 1 2 3F Compilation fails.G Au exceptional is thrown at runtime.