String Concatenation Operator(+)

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untung rugi bisnis forex public class Test { public static void main(String[] args) { String s1="Wel"; String s2="Come"; String s3=s1+s2; System.out.println(s3); } } /* Output: WelCome */

  1. If at least one operand is String type then ‘+’ operator acts as concatenation otherwise it acts as arithmetic addition operator.
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    اسعار الاسهم سوق دبي المالي public class Test { public static void main(String[] args) { String a="java2learn"; int b=10; int c=20; int d=30; System.out.println(a+b+c+d); System.out.println(b+c+d+a); System.out.println(b+c+a+d); System.out.println(b+a+c+d); } } /* Output: java2learn102030 60java2learn 30java2learn30 10java2learn2030 */

Assignment Operators(=)

سعر الذهب في السعودية لحظة بلحظة It is used in 3 ways:

  1. It is used to store a value into a variable
    متى يعطل سوق الاسهم السعودي Example:int x=5;
  2. It is used to store the value of a variable into another variable.
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  3. It is use to store the value of an expression into a variable.

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    public class Test { public static void main(String[] args) { int y=10; int z=30; int x=y+z-4; System.out.println(x); } } /* Output: 36 */

Compound assignment operator (OR)compact Notation

تجارة الفوركس

Expanded Notation compact Notation Name Operator
x=x+10 x+=10 += is called addition Assignment Operator
sal=sal*10.5 sal*=10.5 *= is called Multiplication Assignment Operator
value=value-discount value-=discount -= is called Substraction Assignment Operator
p=p/100 p/=100 /= is called Division Assignment Operator
num=num%5.5 num%=5.5 %= is called modules Assignment Operator

that is b+=1=>b=(byte)(b+1);
the key to success in the forex business Example:

public class Test {
	public static void main(String[] args) {
		byte b=10;
		b=b+1;
		System.out.println(b);
	}
}
/*
Compile time error:
possible loss of precision
required:byte
found:int
*/

تداول الاسهم السعودية الاهلي Example:


public class Test {
	public static void main(String[] args) {
		 byte b=10;
		 b+=1;
		 System.out.println(b);
	}
}
/*
Output:
11
*/