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CCS0070 M3 - M4

QuestionAnswer
Consider the following codes: int x=3; System.out.println(--x); What will be the EXACT output? 2
What will be the output of the following program? boolean a = true; boolean b = false; System.out.println(" a | b = " + (a | b)); System.out.println(" a & b = " + (a & b)); a | b = true a & b = false
What will be the output of the following program? boolean a = true; boolean b = false; System.out.println(" a ^ b = " + (a ^ b)); System.out.println(" a ^ !b = " + (a ^ !b)); a ^ b = true a ^ !b = false
What will be the output of the following program? boolean a = true; boolean b = false; System.out.println(" !a && b = " + (!a && b)); System.out.println(" !a || !b = " + (!a || !b)); !a && b = false !a || !b = true
The ______ loop executes a given statement or a block of statements for a definite number of times. for
[ T / F ]The lbl identifies any valid statement to which control must be transferred False
What does the code output? int x=3; int i=0; while(i<3){ System.out.println("hi"); i++; } hi hi hi
Consider the following codes: int x=3; System.out.println(++x); What will be the EXACT output? 4
[ T / F ]The else statement performs a different set of statements if the expression is false. True
[ T / F ] The statements associated with else keyword is executed if the value of the switch variable does not match any of the case constants. True
What will be the output of the following program? int i = 34.0; int j = 7; int k = i % j; System.out.println("k = " + k ); the program will encounter a error
It adds right operand to the left operand and assign the result to left operand. +=
Supposed: double x = 13.1614; int y = (int)x; what is the value of y? 13
[ T / F ] The for loop facilitates evaluation of condition or expression at the end of the loop to ensure that the statements are executed at least once False
How many objects are present after the following code fragment has executed? double[] ann = new double[ 7 ]; double[] bob; bob = ann; 1 There is only one array object in memory, and both ann and bob refer to it. No new object is created in the assignment bob = ann.
[ T / F ] 10>15 || 2<3||100<23 True
The ________ identifies any valid statement to which control must be transferred Marker Pointer Label Reference Label
Consider the following codes: int x=1; System.out.println(x++); What will be the EXACT output? 1
Used to reverse the logical state of its operand. | ! & !
is an operator used to perform bitwise operations on bit patterns or binary numerals that involve the manipulation of individual bits Arithmetic Operator Relational Operator Bitwise Operator Logical Operator bitwise operator
What is the output of the following code fragment? for ( int j = 10; j > 5; j-- ) System.out.print( j + " " ); System.out.println( ); 10 9 8 7 6
The statements associated with this keyword is executed if the value of the switch variable does not match any of the case constants. default
[ T / F ] The case statement is used to conditionally perform statements based on an integer expression True
What will be the output of the following program System.out.println(10 * 5 + 100 * (25 * 11) / (25 * 10) * 10 - 5 + 7% 2); int zx = (10 * 5 + 100 * (25 * 11)); int yz = ((25 * 10) * 10 - 5 + 7 % 2); System.out.println(zx / yz); 1146 11
[ T / F ] arithmetic operator is a mathematical function that takes two operands and performs a calculation on them. True
[ T / F ] The while loop executes a given statement or block of statements repeatedly as long as the value of the expression is true. True
Consider the following codes: int x=4; System.out.println(--x); What will be the EXACT output? 3
What is the output of the following code fragment: int[] ar = {2, 4, 6, 8 }; ar[0] = 23; ar[3] = ar[1]; System.out.println( ar[0] + " " + ar[3] ); 23 4
What does a Two-Dimensional Array do? Choices: It forms a tabular, two dimensional arrangement. It creates two arrays at once. It creates an array with only two elements. None of the Choices It forms a tabular, two dimensional arrangement.
What will be the output of the following program? int c = 0, e = 50; boolean b = (c == 1) && (++e < 100); System.out.println("e = " + e); boolean f = (++e < 100) && (c == 1); System.out.println("e = " + e); e = 50 e = 51
If both the operands are non-zero, then the condition becomes true. &&
It is a mathematical function that takes two operands and performs a calculation on them. arithmetic operator
Consider the following codes: int x=3; System.out.println(++x); What will be the EXACT output? 4
[ T / F ] Conditional operator is also known as the ternary operator that accepts three operands True
An operator that shifts bits to the left or right shift. shift operator
An operator that copies a bit if it exists in either operand. | (bitwise OR)
Checks if the values of two operands are equal or not, if values are not equal then condition becomes true. !=
The _______ statement causes the program flow to exit from the body of the switch construct break
What is the result of 7%2 1
[ T / F ] The lbl identifies any valid statement to which control must be transferred False
What will be the output of the following program? int x = 42; double y = 42.25; System.out.println("x mod 10 = " + x % 10 ); System.out.println("y mod 10 = " + y % 10 ); x mod 10 = 2 y mod 10 = 2.25
What is the output of the following code fragment int count = 0; for ( ; count < 9; ++count ) System.out.print( count + " " ); System.out.println( ); 0 1 2 3 4 5 6 7 8
Consider the following codes: int x=2; System.out.println(x--); What will be the EXACT output? 2
What is the result of 7|2 7 0111 (7) | 0010 (2) -------- 0111 (result)
An operator that can be used to add String objects. + - * / +
Consider the following codes: int x=3; System.out.println(x++); What will be the EXACT output? 3
It adds right operand to the left operand and assign the result to left operand. += -+ *= +=
What will be the output of the following program? bool lampX = false, result; bool lampY = true; result = lampY && lampX; System.out.println("Lamp switch-on " + result); result = lampY & lampX; System.out.println("Lamp switch-on " + result); Lamp switch-on false Lamp switch-on false
Consider the following codes: int x=2; System.out.println(--x); What will be the EXACT output? 1
[ T / F ] The case statement is used to conditionally perform statements based on an integer expression True
Checks if the values of two operands are equal or not, if yes then condition becomes true. += == -= ==
[ T / F ] shift operators decrease the value of the variable by a particular number by which it was decreased False
[ T / F ] The break statement causes the program flow to skip over and jump to the end of the loop body, and then return the control to the loop control statement. False
[ T / F ] The statements associated with default keyword is executed if the value of the switch variable does not match any of the case constants. True
[ T / F ] The for loop facilitates evaluation of condition or expression at the end of the loop to ensure that the statements are executed at least once False
[ T / F ] bitwise operator is an operator that takes only one value for its operation False
What is the result of 7&2 2 0111 (7) & 0010 (2) -------- 0010 (result)
[ T / F ] The continue statement causes the program flow to skip over and jump to the end of the loop body, and then return the control to the loop control statement. True
[ T / F ] Decrement operators increase the value of the variable by a particular number by which it is increased False
Consider the following codes: int x=4; System.out.println(--x); What will be the EXACT output? 3
It multiplies right operand with the left operand and assign the result to left operand. += -= *= *=
It adds right operand to the left operand and assign the result to left operand. += -= *= +=
The _____ statement performs a different set of statements if the expression is false. else if case else
An operator that can be used to add String objects. + - * +
[ T / F ] The foreach loop is for traversing items in a collection True
It subtracts right operand from the left operand and assign the result to left operand. += -= *= -=
[ T / F ] The else statement performs a different set of statements if the expression is false. True
What will be the output of the following program? int a = 10; int b = a - 5; System.out.println(a <= b); System.out.println(a > b); false true
[ T / F ] arithmetic operator is a mathematical function that takes two operands and performs a calculation on them. True
[ T / F ] The continue statement causes the program flow to exit from the body of the switch construct. False
[ T / F ] The while loop executes a given statement or block of statements repeatedly as long as the value of the expression is true. True
Checks if the value of left operand is less than the value of right operand, if yes then condition becomes true. < > >= <= <
Consider the following codes: int x=4; System.out.println(x--); What will be the EXACT output? 4
[ T / F ] shift operators decrease the value of the variable by a particular number by which it was decreased False
What is the correct order of operations in Java? Parenthesis, (Mul/Div/Mod), (Add/Sub) (Add/Sub), (Mul/Div/Mod), Parenthesis (Mul/Div/Mod), (Add/Sub), Parenthesis (Add/Sub), Parenthesis, (Mul/Div/Mod) Parenthesis, (Mul/Div/Mod), (Add/Sub)
Created by: user-1798141
 

 



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