java计算加法代码

急求JAVA简单加法程序代码

写了个简单的,不知道是不是你想要的,里面的main方法作了一个简单的测试.几个变量我定义为类变量. public class PubTest {

private int ivar1;

fvar1 = fval1;

ivar1 = ival;

}

public PubTest() {

ivar1 = 0;

public float getFvar1() {

return fvar1;

public int getIvar1() {

return ivar1;

public void sum() {

public static void main(String[] args) {

pubTest.sum();

java加法计算器代码

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener

public class NewJFrame extends javax.swing.JFrame {

public NewJFrame() {

initComponents();

private void initComponents() {

jPanel1 = new javax.swing.JPanel();

jLabel1 = new javax.swing.JLabel();

num1 = new javax.swing.JTextField();

result = new javax.swing.JTextField();

addBtn = new javax.swing.JButton();

jMenuBar1 = new javax.swing.JMenuBar();

jMenu1 = new javax.swing.JMenu();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jLabel1.setText("Num1:");

addBtn.setText("Add");

addBtn.addActionListener(new jisuanAC());

javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);

jPanel1.setLayout(jPanel1Layout);

jPanel1Layout.setHorizontalGroup(

jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(jPanel1Layout.createSequentialGroup()

.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addComponent(addBtn)

.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()

.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)

.addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel1Layout.createSequentialGroup()

.addComponent(jLabel1)

.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)

.addComponent(result)

.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)))

);

jPanel1Layout.setVerticalGroup(

.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)

.addComponent(num1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))

.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)

.addComponent(result, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))

jMenu1.setText("Operation");

jMenuBar1.add(jMenu1);

setJMenuBar(jMenuBar1);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());

getContentPane().setLayout(layout);

layout.setHorizontalGroup(

layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

.addGroup(layout.createSequentialGroup()

.addContainerGap()

.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)

.addContainerGap())

layout.setVerticalGroup(

pack();

}// /editor-fold

/**

* @param args the command line arguments

*/

public static void main(String args[]) {

java.awt.EventQueue.invokeLater(new Runnable() {

public void run() {

new NewJFrame().setVisible(true);

});

private class jisuanAC implements ActionListener

{

public void actionPerformed(ActionEvent e) {

if(e.getSource()== addBtn)

int number1 = Integer.parseInt(num1.getText());

result.setText(String.valueOf(rs));

// Variables declaration - do not modify

private javax.swing.JButton addBtn;

private javax.swing.JLabel jLabel1;

private javax.swing.JMenu jMenu1;

private javax.swing.JMenuBar jMenuBar1;

private javax.swing.JPanel jPanel1;

private javax.swing.JTextField num1;

private javax.swing.JTextField result;

这是只有一个加法的例子！希望帮到你

麻烦大神用java帮我做一个加法的运算,全部代码,谢谢

import java.util.Scanner;

public class AA{

public static void main(String[] args){

Scanner in=new Scanner(System.in);

System.out.println("请输入加数");

int a=in.nextInt();

System.out.println("请输入被加数");

int b=in.nextInnt();

int sum=a+b;

System.out.println("a"+"+b"+"="+sum);

怎么用java写加法

java中的加法使用+符号来计算最后的结果.

具体代码如下：

public class Demo {

int result = x + y;

System.out.println(result);

其中需要注意的是代码需写在主方法（main方法）中,否则程序无法运行；还有int型变量的初始值是0,即如果不给int型变量赋值的话,默认这个变量的值为0.

加法的Java 中的加法

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