Data Types and Variables How many primitive data types are there in Java? 7 8 9 6 7 8 9 6 ANSWER DOWNLOAD EXAMIANS APP
Data Types and Variables What is the output for the below code ?1. public class Test{2. public static void main(String[] args){3. int i = 010;4. int j = 07;5. System.out.println(i);6. System.out.println(j);7. }8. } 10 7 Compilation fails with an error at line 3 8 7 Compilation fails with an error at line 5 None of these 10 7 Compilation fails with an error at line 3 8 7 Compilation fails with an error at line 5 None of these ANSWER DOWNLOAD EXAMIANS APP
Data Types and Variables What will be output of following program?public class Test{ public static void main(String[] args){ byte b=127; b++; b++; System.out.println(b); }} 129 -127 Compiler error 2 None of these 129 -127 Compiler error 2 None of these ANSWER DOWNLOAD EXAMIANS APP
Data Types and Variables What is the output for the below code ?class A{ int k; boolean istrue; static int p; public void printValue(){ System.out.print(k); System.out.print(istrue); System.out.print(p); }}public class Test{ public static void main(String argv[]){ A a = new A(); a.printValue(); }} 0 true 0 0 false 0 0 0 0 None of these Compile error - static variable must be initialized before use. 0 true 0 0 false 0 0 0 0 None of these Compile error - static variable must be initialized before use. ANSWER DOWNLOAD EXAMIANS APP
Data Types and Variables Determine output:class A{ public static void main(String args[]){ int x; x = 10; if(x == 10){ int y = 20; System.out.print("x and y: "+ x + " " + y); y = x*2; } y = 100; System.out.print("x and y: " + x + " " + y); }} 10 20 10 20 10 20 10 10 Error 10 20 10 100 10 20 10 20 10 20 10 10 Error 10 20 10 100 ANSWER DOWNLOAD EXAMIANS APP
Data Types and Variables The following program:public class Test{ static boolean isOK; public static void main(String args[]){ System.out.print(isOK); } } Will not compile as boolean is not initialized Will not compile as boolean can never be static Prints true Prints false Will not compile as boolean is not initialized Will not compile as boolean can never be static Prints true Prints false ANSWER DOWNLOAD EXAMIANS APP
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