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 can never be static Will not compile as boolean is not initialized Prints false Prints true Will not compile as boolean can never be static Will not compile as boolean is not initialized Prints false Prints true ANSWER DOWNLOAD EXAMIANS APP
Data Types and Variables How many primitive data types are there in Java? 6 7 9 8 6 7 9 8 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); }} Error 10 20 10 10 10 20 10 20 10 20 10 100 Error 10 20 10 10 10 20 10 20 10 20 10 100 ANSWER DOWNLOAD EXAMIANS APP
Data Types and Variables Determine output:public class Test{int i = 34;public static void main(String args[]){Test t1 = new Test();Test t2 = new Test();t1.i = 65;System.out.print(t1.i);System.out.print(t2.i);}} 65 34 34 65 34 34 65 65 65 34 34 65 34 34 65 65 ANSWER DOWNLOAD EXAMIANS APP
Data Types and Variables Determine output:public class Test{ int a = 10; public void method(int a){ a += 1; System.out.println(++a); } public static void main(String args[]){ Test t = new Test(); t.method(3); }} 5 12 11 None of these 4 5 12 11 None of these 4 ANSWER DOWNLOAD EXAMIANS APP
Data Types and Variables What is the output of the following program?public class Test{static int x = 10 ; public static void main(String[] a){ Test test = new Test( ) ; Test test1 = new Test( ) ; test.x += 1 ; System.out.println( test.x + test1.x ) ; }} 22 20 21 Throws Exception Compilation Error 22 20 21 Throws Exception Compilation Error ANSWER DOWNLOAD EXAMIANS APP
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