java operators

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10 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class OperatorExample{
public static void main(String args[]){
int x=10;
System.out.println(x++);
System.out.println(++x);
System.out.println(x--);
System.out.println(--x);
}}

10 12 12 10

11 12 11 10

10 11 10 9

11 12 12 11

Answer explanation

//10 (11)
//12
//12 (11)
//10

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class OperatorExample{
public static void main(String args[]){
int a=10;
int b=10;
System.out.println(a++ + ++a);
System.out.println(b++ + b++);

}}

20 20

20 22

22 21

21 22

Answer explanation

//10+12=22
//10+11=21

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class OperatorExample{
public static void main(String args[]){
int a=10;
int b=-10;
boolean c=true;
boolean d=false;
System.out.println(-a);
System.out.println(-b);
System.out.println(!c);
System.out.println(!d);
}}

-10 -9 true false

-11 9 false true

-11 -9 true false

-10 9 false true

Answer explanation

//-11 (minus of total positive value which starts from 0)
//9 (positive of total minus, positive starts from 0)
//false (opposite of boolean value)
//true
}}

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class OperatorExample{
public static void main(String args[]){
System.out.println(1010/5+3-14/2);
}}

Answer explanation

according to boadmas rule priority

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

public class OperatorExample{
public static void main(String args[]){
System.out.println(10<<2);
System.out.println(10<<3);
System.out.println(20<<2);
System.out.println(15<<4);
}}

40 80 80 240

20 30 40 60

8 9 18 11

5 3.3 10 3.75

Answer explanation

//102^2=104=40
//102^3=108=80
//202^2=204=80
//152^4=1516=240
}}

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public OperatorExample{
public static void main(String args[]){
System.out.println(10>>2);
System.out.println(20>>2);
System.out.println(20>>3);
}}

20 40 60

40 80 160

2 5 2

10 20 23

Answer explanation

//10/2^2=10/4=2
//20/2^2=20/4=5
//20/2^3=20/8=2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

public class OperatorExample{
public static void main(String args[]){
int a=10;
int b=5;
int c=20;
System.out.println(a<b&&a<c);
System.out.println(a<b&a<c);
}}

true true

false false

true false

false true

Answer explanation

//false && true = false
//false & true = false

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java operators

public class OperatorExample{
public static void main(String args[]){
int x=10;
System.out.println(x++);
System.out.println(++x);
System.out.println(x--);
System.out.println(--x);
}}

//10 (11)
//12
//12 (11)
//10

public class OperatorExample{
public static void main(String args[]){
int a=10;
int b=10;
System.out.println(a++ + ++a);
System.out.println(b++ + b++);

}}

//10+12=22
//10+11=21

public class OperatorExample{
public static void main(String args[]){
int a=10;
int b=-10;
boolean c=true;
boolean d=false;
System.out.println(-a);
System.out.println(-b);
System.out.println(!c);
System.out.println(!d);
}}

//-11 (minus of total positive value which starts from 0)
//9 (positive of total minus, positive starts from 0)
//false (opposite of boolean value)
//true
}}

public class OperatorExample{
public static void main(String args[]){
System.out.println(1010/5+3-14/2);
}}

according to boadmas rule priority

public class OperatorExample{
public static void main(String args[]){
System.out.println(10<<2);
System.out.println(10<<3);
System.out.println(20<<2);
System.out.println(15<<4);
}}

//102^2=104=40
//102^3=108=80
//202^2=204=80
//152^4=1516=240
}}

public OperatorExample{
public static void main(String args[]){
System.out.println(10>>2);
System.out.println(20>>2);
System.out.println(20>>3);
}}

//10/2^2=10/4=2
//20/2^2=20/4=5
//20/2^3=20/8=2

public class OperatorExample{
public static void main(String args[]){
int a=10;
int b=5;
int c=20;
System.out.println(a<b&&a<c);
System.out.println(a<b&a<c);
}}

//false && true = false
//false & true = false

public class OperatorExample{
public static void main(String args[]){
int a=2;
int b=5;
int min=(a<b)?a:b;
System.out.println(min);
}}

public class OperatorExample{
public static void main(String args[]){
short a=10;
short b=10;
a=a+b;
System.out.println(a);
}}

//a+=b;//a=a+b internally so fine
//Compile time error because 10+10=20 now int

public class OperatorExample{
public static void main(String args[]){
short a=10;
short b=10;
a=(short)(a+b);
System.out.println(a);
}}

//20 which is int now converted to short

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java operators

public class OperatorExample{ public static void main(String args[]){ int x=10; System.out.println(x++);System.out.println(++x);System.out.println(x--);System.out.println(--x);}}

//10 (11) //12 //12 (11) //10

public class OperatorExample{ public static void main(String args[]){ int a=10; int b=10; System.out.println(a++ + ++a); System.out.println(b++ + b++); }}

//10+12=22 //10+11=21

public class OperatorExample{ public static void main(String args[]){ int a=10; int b=-10; boolean c=true; boolean d=false; System.out.println(-a); System.out.println(-b);System.out.println(!c);System.out.println(!d);}}

//-11 (minus of total positive value which starts from 0) //9 (positive of total minus, positive starts from 0) //false (opposite of boolean value) //true }}

public class OperatorExample{ public static void main(String args[]){ System.out.println(10*10/5+3-1*4/2); }}

according to boadmas rule priority

public class OperatorExample{ public static void main(String args[]){ System.out.println(10<<2); System.out.println(10<<3);System.out.println(20<<2);System.out.println(15<<4); }}

//10*2^2=10*4=40 //10*2^3=10*8=80 //20*2^2=20*4=80 //15*2^4=15*16=240 }}

public OperatorExample{ public static void main(String args[]){ System.out.println(10>>2);System.out.println(20>>2); System.out.println(20>>3);}}

//10/2^2=10/4=2 //20/2^2=20/4=5 //20/2^3=20/8=2

public class OperatorExample{ public static void main(String args[]){ int a=10; int b=5; int c=20; System.out.println(a<b&&a<c);System.out.println(a<b&a<c); }}

//false && true = false //false & true = false

public class OperatorExample{ public static void main(String args[]){ int a=2; int b=5; int min=(a<b)?a:b; System.out.println(min); }}

public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; a=a+b; System.out.println(a); }}

//a+=b;//a=a+b internally so fine //Compile time error because 10+10=20 now int

public class OperatorExample{ public static void main(String args[]){ short a=10; short b=10; a=(short)(a+b); System.out.println(a); }}

//20 which is int now converted to short

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public class OperatorExample{
public static void main(String args[]){
int x=10;
System.out.println(x++);
System.out.println(++x);
System.out.println(x--);
System.out.println(--x);
}}

//10 (11)
//12
//12 (11)
//10

public class OperatorExample{
public static void main(String args[]){
int a=10;
int b=10;
System.out.println(a++ + ++a);
System.out.println(b++ + b++);

}}

//10+12=22
//10+11=21

public class OperatorExample{
public static void main(String args[]){
int a=10;
int b=-10;
boolean c=true;
boolean d=false;
System.out.println(-a);
System.out.println(-b);
System.out.println(!c);
System.out.println(!d);
}}

//-11 (minus of total positive value which starts from 0)
//9 (positive of total minus, positive starts from 0)
//false (opposite of boolean value)
//true
}}

public class OperatorExample{
public static void main(String args[]){
System.out.println(1010/5+3-14/2);
}}

public class OperatorExample{
public static void main(String args[]){
System.out.println(10<<2);
System.out.println(10<<3);
System.out.println(20<<2);
System.out.println(15<<4);
}}

//102^2=104=40
//102^3=108=80
//202^2=204=80
//152^4=1516=240
}}

public OperatorExample{
public static void main(String args[]){
System.out.println(10>>2);
System.out.println(20>>2);
System.out.println(20>>3);
}}

//10/2^2=10/4=2
//20/2^2=20/4=5
//20/2^3=20/8=2

public class OperatorExample{
public static void main(String args[]){
int a=10;
int b=5;
int c=20;
System.out.println(a<b&&a<c);
System.out.println(a<b&a<c);
}}

//false && true = false
//false & true = false

public class OperatorExample{
public static void main(String args[]){
int a=2;
int b=5;
int min=(a<b)?a:b;
System.out.println(min);
}}

public class OperatorExample{
public static void main(String args[]){
short a=10;
short b=10;
a=a+b;
System.out.println(a);
}}

//a+=b;//a=a+b internally so fine
//Compile time error because 10+10=20 now int

public class OperatorExample{
public static void main(String args[]){
short a=10;
short b=10;
a=(short)(a+b);
System.out.println(a);
}}