JAVA Exceptions Which of the following blocks execute compulsorily whether exception is caught or not. catch throws throw finally catch throws throw finally ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions The class at the top of exception class hierarchy is ................. Throwable Object Exception ArithmeticException Throwable Object Exception ArithmeticException ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions What will be the result after the class Test execution?class A{ public void doA(){ B b = new B(); b.dobB(); System.out.print("doA"); }}class B{ public void dobB(){ C c = new C(); c.doC(); System.out.print("doB"); }}class C{ public void doC(){ if(true) throw new NullPointerException(); System.out.print("doC"); }}public class Test{ public static void main(String args[]){ try{ A a = new A(); a.doA(); }catch(Exception ex){ System.out.print("error"); } }} "doAdoBdoC" is printed nothing is printed "error" is printed "doBdoAerror" is printed "doCdoBdoA" is printed "doAdoBdoC" is printed nothing is printed "error" is printed "doBdoAerror" is printed "doCdoBdoA" is printed ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions Predict the output:public class Test{ public static void main(String args[]){ try{ String arr[] = new String[10]; arr = null; arr[0] = "one"; System.out.print(arr[0]); }catch(Exception ex){ System.out.print("exception"); }catch(NullPointerException nex){ System.out.print("null pointer exception"); } }} "one" is printed. Compilation fails saying NullPointerException has already been caught. None of these "null pointer exception" is printed. "exception" is printed. "one" is printed. Compilation fails saying NullPointerException has already been caught. None of these "null pointer exception" is printed. "exception" is printed. ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions Determine output of the following program code?public class Test{ public static void main(String args[]){ int i; try{ i = calculate(); System.out.println(i); }catch(Exception e){ System.out.println("Error occured"); } } static int calculate(){ return (7/2); }} 3 3.5 Error occured None of these Compilation Error 3 3.5 Error occured None of these Compilation Error ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions What will be the result if NullPointerException occurs at line 2?1. try{2. //some code goes here3. }4. catch(NullPointerException ne){5. System.out.print("1 ");6. }7. catch(RuntimeException re){8. System.out.print("2 ");9. }10. finally{11. System.out.print("3");12. } 1 3 1 2 3 1 3 2 3 1 3 1 2 3 1 3 2 3 ANSWER DOWNLOAD EXAMIANS APP
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