coe java 24 june 21 7:30 to 745 pm only

Which of the below is valid way to instantiate an array in java?

• int myArray [] = {1, 3, 5};
• int myArray [] [] = {1,2,3,4};
• int [] myArray = (5, 4, 3);
• int [] myArray = {“1”, “2”, “3”};

What is the return type of hashCode() method in Object class

• Object
• int
• long
• void

What will be output of below program?<br />public class Test { <br />public void main(String[] args) {<br />int x = 10*30-70; <br />System.out.println(x); <br />}<br />}

• Compile-time error
• Runtime Error
• Prints 0
• Prints 230

What is the output of the below Java program with WHILE, BREAK and CONTINUE?<br />int cnt=0;<br />while(true)<br />{<br />if(cnt > 4)<br />break;<br />if(cnt==0)<br />{ <br />cnt++;<br />continue;<br />}<br />System.out.print(cnt + ",");<br />cnt++;<br />}

• 0,1,2,3,4,
• Compiler Error
• 1,2,3,4,
• 0,1,2,3

x=3,y=5,z=10.What is the value of<br />++z +y-y+z+x++

• 24
• 23
• 25
• 20

Early binding is also class as?

• late binding
• static binding
• dynamic binding
• fast binding

Use of final keyword in java?

• when a method is final, it can be overridden
• when a class is made final, a subclass of it cannot be created
• when a method is final, it can not be overridden
• none of the above

What is the range of short data type in Java?

• -128 to 127
• -32768 to 32767
• -2147483648 to 2147483647
• None of the mentioned

Which component is responsible for converting bytecode into machine specific code?

• JRE
• JDK
• JVM
• JIT

What is the range of any 8 bit signed no.?

• 0 to 255
• -255 to 254
• -128 to 127
• 0 to 515