7.Java shift operators and assignment operators

I. SHIFT operators

The shift operator is also for binary "bit", which mainly includes: Left shift operator (<<), right shift operator (>>>), signed right shift operator (>>). which

• The left shift operator is denoted by "<<", which is the object to the left of the operator, the number of bits specified to the right of the operator to the left, and 0 in the low. In fact, moving the N-bit to the left is equivalent to multiplying by 2 of the n-th square.
• The right-shift operator is denoted by the symbol ">>>", which is the number of bits specified to the right of the operator to the left of the operators, and 0 on the high, in fact the right shift n bits, which is equivalent to the nth of 2.
• The signed right-shift operator, denoted by the symbol ">>", is the operand to the left of the operator, and the number of digits specified to the right of the operator to the right. If it is positive, fill 0 in the high position, and if it is negative, then fill 1 in the high position.

public class data17{
public static void Main (string[] args) {
int a=2; int b=2;
int x=16; int y=2;
int m=16;    int n=2;    int p=-16; int q=2;

SYSTEM.OUT.PRINTLN (the result of a shift is: "+ (a<<b));
SYSTEM.OUT.PRINTLN ("x shift result is:" + (x>>>y));
SYSTEM.OUT.PRINTLN ("Shift result of M:" + (m>>n));
System.out.println ("p shift Result:" + (P>>Q));
}
}

Operation Result:
The result of a shift is: 8
The result of the x shift is: 4
Shift results for M: 4
Shift results for P: 4

Two. Assignment operators

Assignment is assigning a value to a variable, and the assignment operator acts as the assignment, in fact, the simplest assignment operator is "=".

There are, of course, many other assignment operators besides "=". There are "+ =", "-=", "*=", "/=", "%=", ">>=", ">>>=", "<<=", "&=", "|=", "^=". Here's a simple example.

public class data20{
public static void Main (string[] args) {
int a=5;
int b=2;
System.out.println ("A+=b Value:" + (a+=b));
System.out.println ("A-=b Value:" + (a-=b));
System.out.println ("A*=b Value:" + (a*=b));
System.out.println ("A/=b Value:" + (a/=b));
System.out.println ("A%=b Value:" + (a%=b));
System.out.println ("A>>=b Value:" + (a>>=b));
System.out.println ("A>>>=b Value:" + (a>>>=b));
System.out.println ("A<<=b Value:" + (a<<=b));
System.out.println ("A&=b Value:" + (a&=b));
System.out.println ("A|=b Value:" + (a|=b));
System.out.println ("A^=b Value:" + (a^=b));
}
}

Output Result:
"A+=b" is a=a+b=7;
"A-=b" is a=a-b=7-2=5;
"A*=b" is a=a*b=5*2=10;
"A/=b" is a=a/b=10/2=5;
"A%=b" is a=a%b=5%2=1;
"A>>=b" is a=a>>b=0;.
"A>>>=b" is a=a>>>b=0;.
"A<<=b" is a=a<<b=0;.
"A&=b" is a=a&b=0;.
"A|=b" is a=a|b=2;
"A^=b" is a=a^b=0;

7.Java shift operators and assignment operators