java代码厘米 厘米的代码怎么写
用java编写一个程序,完成从英寸到厘米的转换(1inch=2.54cm).选择一组测试数据来测试
public class InchConv{
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public static void main(String argv[]){
int inchs[]={12, 45, 6,78,99};
for(int n : inchs){
double f = n*2.54;
System.out.printf("%d - %f \r\n", n, f);
}
}
}
java中身高用什么字段'
java "字段"的意思如下：
如果说是类的话，就是类的成员（包括public,private,protected），例如：
public class ceshi{
int i=1; //i表示ceshi这个类的一个成员变量，也就是字段
public static void main(String[] args){
System.out.println("打印出这个字段"+i);
}
}
如果说是数据库的话，就是数据库的列，比如对于一个表：table，有name、id两列，这两列便称为字段。
数据单位转换工具java代码
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
public class UnitTransfer extends JFrame{
private final int WIDTH = 400, HEIGHT = 300;//窗口默认的宽度、高度
private JLabel lblInUnit=new JLabel("输入单位");
private JComboBox cboIn=new JComboBox(new String[]{"", ""});
private JLabel lblIn=new JLabel("输入数值");
private JTextField txtIn=new JTextField("10");
private JLabel lblOutUnit=new JLabel("输出单位");
private JLabel lblResult=new JLabel("显示结果");
private JLabel txtResult=new JLabel("结果");
private JComboBox cboOut=new JComboBox(new String[]{"", ""});
private JButton btnTrans = new JButton("转换");
private JButton btnClear = new JButton("清空");
private JRadioButton rdLeng = new JRadioButton("长度");
private JRadioButton rdWeig = new JRadioButton("时间");
private String [] lengthUnit={"米", "分米", "厘米", "毫米"};
private String [] timeUnit={"天", "时", "分", "秒"};
public UnitTransfer(){
super("简单的单位转换器 Beta");
this.setSize(WIDTH, HEIGHT);
this.setLayout(null);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
ButtonGroup group = new ButtonGroup();
group.add(rdLeng);
group.add(rdWeig);
this.getContentPane().add(rdLeng);
this.getContentPane().add(rdWeig);
this.getContentPane().add(btnTrans);
this.getContentPane().add(btnClear);
this.getContentPane().add(lblIn);
this.getContentPane().add(txtIn);
this.getContentPane().add(lblInUnit);
this.getContentPane().add(cboIn);
this.getContentPane().add(lblResult);
this.getContentPane().add(txtResult);
this.getContentPane().add(lblOutUnit);
this.getContentPane().add(cboOut);
this.setVisible(true);
this.doLayout();
btnTrans.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
doConvert();
}
});
btnClear.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
txtIn.setText("0");
txtResult.setText("0");
}
});
rdLeng.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
cboIn.setModel(new DefaultComboBoxModel(lengthUnit));
cboOut.setModel(new DefaultComboBoxModel(lengthUnit));
}
});
rdWeig.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
cboIn.setModel(new DefaultComboBoxModel(timeUnit));
cboOut.setModel(new DefaultComboBoxModel(timeUnit));
}
});
rdLeng.setSelected(true);
cboIn.setModel(new DefaultComboBoxModel(lengthUnit));
cboOut.setModel(new DefaultComboBoxModel(timeUnit));
}
final int offX=100;
public void doLayout(){
super.doLayout();
rdLeng.setBounds(offX, 15, 60, 20);
rdWeig.setBounds(rdLeng.getX()+rdLeng.getWidth()+5, 15, 60, 20);
lblInUnit.setBounds(offX, rdLeng.getY()+rdLeng.getHeight()+20, 80, 20);
cboIn.setBounds(lblInUnit.getX()+lblInUnit.getWidth()+5, lblInUnit.getY(), 80, 20);
lblIn.setBounds(offX, lblInUnit.getY()+lblInUnit.getHeight()+5, 80, 20);
txtIn.setBounds(lblIn.getX()+lblIn.getWidth()+5, lblIn.getY(), 80, 20);
lblOutUnit.setBounds(offX, lblIn.getY()+lblIn.getHeight()+30, 80, 20);
cboOut.setBounds(lblOutUnit.getX()+lblOutUnit.getWidth()+5, lblOutUnit.getY(), 80, 20);
lblResult.setBounds(offX, cboOut.getY()+cboOut.getHeight()+5, 80, 20);
txtResult.setBounds(lblResult.getX()+lblResult.getWidth()+5, lblResult.getY(), 100, 20);
int w=getWidth ();
int x=(w-70*2-5)/2;//水平居中
btnTrans.setBounds(x, lblResult.getY()+lblResult.getHeight()+30, 70, 25);
btnClear.setBounds(btnTrans.getX()+btnTrans.getWidth()+3, btnTrans.getY(), 70, 25);
}
public void doConvert(){
double v=0;
try{
v= Double.parseDouble(txtIn.getText());
}catch(Exception ex){
txtIn.setText("0");
return;
}
//"米", "分米", "厘米", "毫米"
if(rdLeng.isSelected()){
switch(cboIn.getSelectedIndex()){
case 0:
break;
case 1:
v=v/10;
break;
case 2:
v=v/100;
break;
case 3:
v=v/1000;
break;
default:
return;
}
//v 现在是标准单位：米
switch(cboOut.getSelectedIndex()){
case 0:
break;
case 1:
v=v*10;
break;
case 2:
v=v*100;
break;
case 3:
v=v*1000;
break;
default:
return;
}
if(v0.01){
txtResult.setText(String.format("%2.8f", v));
}else{
txtResult.setText(String.format("%2.2f", v));
}
}else{
//"天", "时", "分", "秒"
switch(cboIn.getSelectedIndex()){
case 0:
v=v*24;
break;
case 1:
break;
case 2:
v=v/60;
break;
case 3:
v=v/3600;
break;
default:
return;
}
//v 现在是标准单位：小时
switch(cboOut.getSelectedIndex()){
case 0:
v=v/24;
break;
case 1:
break;
case 2:
v=v*60;
break;
case 3:
v=v*3600;
break;
default:
return;
}
if(v0.01){
txtResult.setText(String.format("%2.8f", v));
}else{
txtResult.setText(String.format("%2.8f", v));
}
}
}
public static void main(String[] args){
EventQueue.invokeLater(new Runnable() {
public void run() {
new UnitTransfer();
}
});
}
}
//请参考，欢迎指正
java 中输入数据是以米计算，怎样把米转换成厘米？
DecimalFormat df2 = new DecimalFormat("###.00");
System.out.println(df2.format(180/100d));
如何用java语言编写将厘米转化英尺
public double LiMiChange(double limi){
//1厘米=0.032808398950131英尺
return limi*0.032808398950131;
}
java编程 这个程序通过判定输入的身高cm和体重kg来判断对方体型是否符
public static void main(String[] args){
Scanner input = new Scanner(System.in);
System.out.println("请输入你的身高");
int sg = input.nextInt();//身高/cm
if(sg0){
System.out.println("请正确输入你的身高/身高大于零");
sg = input.nextInt();
}
System.out.println("请输入你的体重");
int tz = input.nextInt();//体重/kg
if(tz0){
System.out.println("请正确输入你的体重/体重大于零");
tz = input.nextInt();
}
int bz = sg - 110;//标准体重/kg
if(bz=0){
if(tz=(bz+5) tz=(bz-5)){
System.out.println("标准！！！");
}else if(tz(bz+5)){
System.out.println("过胖！！！");
}else if(tz(bz-5)){
System.out.println("过瘦！！！");
}
}else{
System.out.println("标准体重为负,输入有误还是xxx！！！！！！");
}
}
希望能帮到你
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