To convert a int to string: int num = 123; String str = String.valueOf(num); To convert a string to int: String str = "123"; int num = Integer.valueOf(str); 版权声明:本文为博主原创文章,未经博主允许不得转载。
intnum=100;Stringvalue1=Integer.toString(num);// Works for Integer tooStringvalue2=String.valueOf(num);// Works for Integer too 1. UsingInteger.toString() TheInteger.toString(int)returns a string representing the specifiedintpassed as a method argument. By default, the argument is converted t...
Java To convert a int to string: intnum=123;Stringstr=String.valueOf(num); 1. 2. To convert a string to int: Stringstr="123";intnum=Integer.valueOf(str); 1. 2. 版权声明:本文为博主原创文章,未经博主允许不得转载。
1. Convert int to String using Integer.toString() In this example we will see how to convert int to string using Integer.toString() . toString() method is present in many java classes . It return a String . Syntax : public String toString() { } Copy This method returns a String objec...
To learn more, visit the Java Wrapper Class. Note: The string variables should represent the int values. Otherwise the compiler will throw an exception. For example, class Main { public static void main(String[] args) { // create a string variable String str1 = "Programiz"; // convert ...
String valueOf method is overloaded and there is one that accepts character array. Internally this method calls the String constructor, so it’s same as above method. That’s all for converting char to string and char array to string in java....
The Double is a wrapper class in Java. To learn more, visit the Java Wrapper Class. Example 3: Java Program to Convert double to String using + Operator class Main { public static void main(String[] args) { // create double variables double num1 = 347.6D; double num2 = 86.56D; /...
// 各种类型转字符串int a = 1;//aStr为"1"String aStr = Convert.toStr(a);System.out.println(aStr);long[] b = {1,2,3,4,5};//bStr为:"[1, 2, 3, 4, 5]"String bStr = Convert.toStr(b);System.out.println(bStr);Map<String,Integer> map=new HashMap<>();map.put("SDfsd",...
String name = "Bruce"; Integersare whole numbers. They can be any number from-2147483648to2147483647. Setting an integer is just like setting up a string, the only difference is that you need to use theintkeyword at the beginning, and the value that you are going to store in, doesn’t...
It is not that one need to optimize everything to this level, but learning a few good habits like this will help in the long run. String -> int/Integer 两种写法 int i = Integer.parseInt("43"); Integer i = Integer.valueOf("43"); ...