3. Decrement(- -) Operator Example The decrement(- -) operator is used to decrease the value of an operand. Similar to ++ operator, it can also be used in following two ways: Pre-decrement (- -i) Post-decrement (i- -) classJavaExample{publicstaticvoidmain(String[]args){intnumber=5;...
shell脚本报错:"[: =: unary operator expected" 在匹配字符串相等时,我用了类似这样的语句: if [ $STATUS == "OK" ]; then echo "OK" fi 究其原因,是因为如果变量STATUS值为空,那么就成了 [ = "OK"] ,显然 [ 和 "OK" 不相等并且缺少了 [ 符号,所以报了这样的错误。 当然不总是出错,如果变量...
For example, x+=1; and x=x+1; both increment the value of x by 1. The + operator can also be used for concatenating (joining) two strings together, as shown in the following ConcatDemo program: class ConcatDemo { public static void main(String[] args){ String firstString = "This ...
inta=60;/* 60 = 0011 1100 */intc=0;c=~a;/* -61 = 1100 0011 */printf("Value of c is %d \n",c);return0;} Output When you run this code, it will produce the following output − Value of c is -61 Print Page Previous ...
Following example explain how minus (-) operator can be overloaded for prefix as well as postfix usage.Open Compiler #include <iostream> using namespace std; class Distance { private: int feet; // 0 to infinite int inches; // 0 to 12 public: // required constructors Distance() { feet...
A tree node for postfix and unary expressions. UsegetKindto determine the kind of operator. For example: operatorexpressionexpressionoperator SeeJava Language Specification: 15.14 Postfix Expressions 15.15 Unary Operators Since: 1.6 Nested Class Summary ...
The source code to demonstrate the unary plus (+) operator with TimeSpan structure is given below. The given program is compiled and executed successfully.using System; class TimeSpanDemo { //Entry point of Program static public void Main() { TimeSpan timeInterval = new TimeSpan(4, 10, ...
The unary minus operator is used to negate a number, and when it is used before a variable, it negates its value. The unary minus operator represents the prefix-sign in C++. You must put the-sign before a number to negate it; for example, if you want to negate 5, you will type ...
[英]A tree node for postfix and unary expressions. Use #getKind to determine the kind of operator. For example: operator expression expression operator [中]后缀和一元表达式的树节点。使用#getKind确定运算符的类型。例如: operator expression expression operator ...
aThe unary bitwise complement operator "~" inverts a bit pattern; it can be applied to any of the integral types, making every "0" a "1" and every "1" a "0". For example, a byte contains 8 bits; applying this operator to a value whose bit pattern is "00000000" would change its...