本文共 970 字，大约阅读时间需要 3 分钟。

int Java Keyword with Examples

Key points about int Keyword

• The int keyword is used to declare a variable as a numeric type. For example, int a = 10;
• A int variable is a signed 32-bit type that has a range from –2,147,483,648 to 2,147,483,647.
• The Integer class is a wrapper class for the int primitive type. It defines MIN_VALUE and MAX_VALUE constants representing the range of values for this type.

In the following example, the sum, i and n variables are of type int:

package net.javaguides.corejava.variables;public class LocalVariableExample {    public int sum(int n) {        int sum = 0;        for (int i = 0; i < n; i++) {            sum = sum + i;        }        return sum;    }    public static void main(String[] args) {        LocalVariableExample localVariableExample = new LocalVariableExample();        int sum = localVariableExample.sum(10);        System.out.println("Sum of first 10 numbers -> " + sum);    }}

Output:

Sum of first 10 numbers -> 45

转载地址：http://qbgrn.baihongyu.com/