Revision Tour I

State whether the statement is True or False:

Choose the odd one:

Give the output of the following:

Given below is a class with the following specifications: class name : Number void Display(int n) - To extract and print each digit of the given number, from the last digit to the first digit, on separate lines. Example: n = 674 Output: 4 / 7 / 6 void Display() - To print numbers from 0.5 to 5.0 with an update of 0.5. Fill in the blanks of the given program with appropriate statements: class (i) __________ { void Display(int n) { while( (ii) __________ ) { int rem = (iii) __________ System.out.println(rem); n = (iv) __________ } } void Display() { for( (v) __________ ; x <= (vi) __________ ; x += 0.5) System.out.println(x); } }

The following program segment checks whether a number is an Abundant number or not. A number is said to be Abundant when the sum of its factors (excluding the number itself) is greater than the number. Example: factors of 12 are 1, 2, 3, 4, 6 and their sum is 16. Fill in the blanks with appropriate Java statements: void abundant(int n) { int s = 0; for( (i) __________ ; (ii) __________ ; i++) { if( (iii) __________ ) s = s + i; } if( (iv) __________ ) System.out.println("Abundant Number"); else System.out.println("Not Abundant Number"); }

Read the following case study and answer the questions given below by choosing the correct option: Java compilation is different from the compilation of other high-level languages. Other high-level languages use an interpreter or a compiler, but in Java the source code is first compiled to produce an intermediate code called the byte code. This byte code is platform independent and is a highly optimised set of instructions designed to be executed by the Java run-time system called the JVM (Java Virtual Machine). The JVM is a Java interpreter loaded into computer memory as soon as Java is loaded. The JVM is different for different platforms.