Learn Java in Easy Steps

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Learn Core JAVA in Easy Steps [Page 5]

Conditional Constructs :-

1. Switch
2. If
3. If Else
4. If Else If ladder
5. nested If

Looping :-

1. While
2. Do While
3. For
4. For each

--> Switch :=

switch(expression){

case 1:

statements;break;

case 2:

statements;break;

.... 

default:

statements;

}

--> If :=

if(condition){

statements;

}

--> If Else :=

if(condition)

{}

else

{}

--> If - Else - If :=

if(){

}else if(){

}else{

}

--> Nested If :=

if(){

if()

{}

}

--> While :=

while(condition){
}

--> Do While :=

do{}while(condition)

--> For :=

for(start, end, condition){} 

--> For Each :=

for(String Devharsh:array)

System.out.println(Devharsh);

Learn Core JAVA in Easy Steps [Page 4]

Operators:

1. Arithmetic

 - Assignment

 - Increment

 - Decrement

2. Relational

 - Boolean

3. Logical

 - Short Circuit

 - Long Circuit

Priority	Operators	Operation	Associativity
1	[ ]	array index	left
	()	method call
	.	member access
2	++	pre- or postfix increment	right
	--	pre- or postfix decrement
	+ -	unary plus, minus
	~	bitwise NOT
	!	boolean (logical) NOT
	(type)	type cast
	new	object creation
3	* / %	multiplication, division, remainder	left
4	+ -	addition, substraction	left
	+	string concatenation
5	<<	signed bit shift left	left
	>>	signed bit shift right
	>>>	unsigned bit shift right
6	< <=	less than, less than or equal to	left
	> >=	greater than, greater than or equal to
	instanceof	reference test
7	==	equal to	left
	!=	not equal to
8	&	bitwise AND	left
	&	boolean (logical) AND
9	^	bitwise XOR	left
	^	boolean (logical) XOR
10	|	bitwise OR	left
	|	boolean (logical) OR
11	&&	boolean (logical) AND	left
12	||	boolean (logical) OR	left
13	? :	conditional	right
14	=	assignment	right
	*= /= += -= %= <<= >>= >>>= &= ^= |=	combinated assignment (operation and assignment)