java进制转换器 图形用户界面 十进制及其相反数分别转化为二,四,八,十六进制

package com.rgy.Test;

import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Label;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener; import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField; import com.rgy.Tools.Tools; public class SystemSwitch {
private JPanel panel_left;
private JPanel panel_right;
private Label label[];
private JTextField text_field[];
public void init(){
JFrame f=new JFrame("int整数的进制转化");
f.setVisible(true);
f.setLocation(500, 250);
f.setBackground(Color.lightGray);
f.setLayout(new FlowLayout()); panel_left=new JPanel();
panel_right=new JPanel();
panel_left.setLayout(new GridLayout(5,1,10,10));
panel_right.setLayout(new GridLayout(5,2,10,10)); String str[]={"十进制","二进制","四进制","八进制","十六进制"};
label=new Label[5];//重要
for(int i=0;i<label.length;i++){
label[i]=new Label(str[i],Label.RIGHT);
panel_left.add(label[i]);
} text_field=new JTextField[10];//重要
for(int i=0;i<text_field.length;i++){
text_field[i]=new JTextField(20);
panel_right.add(text_field[i]);
if(i%2==1){
text_field[i].setEditable(false);
}
} f.add(panel_left);
f.add(panel_right);
f.pack(); text_field[0].addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String str,str1,str2="",str3="",str4="";//辅助变量
int len;
int temp;
str=text_field[0].getText();
temp=Integer.parseInt(str);
text_field[1].setText(""+(-temp));//十进制负数
//正数二进制
if(Integer.toBinaryString(temp).length()<=32){
len=32-Integer.toBinaryString(temp).length();
for(int i=0;i<len-1;i++){
str4=str4+"0";
}
text_field[2].setText(str4+Integer.toBinaryString(temp));
str4="";
}
else{
return;
}
//相反数二进制
text_field[3].setText(Integer.toBinaryString(-temp));
//相反数四进制(利用负数的二进制分别进行两位合并得到该负数的四进制)
str1=text_field[3].getText();
for(int i=0;i<str1.length();i=i+2){
str2=str1.substring(i,i+2);
str3=str3+(Integer.parseInt(str2.substring(0,1))*2+
Integer.parseInt(str2.substring(1,2)));
}
text_field[5].setText(str3);
//正数四进制
if((""+Tools.getQuanteranry(temp)).length()<=16){
len=16-(""+Tools.getQuanteranry(temp)).length();
for(int i=0;i<len-1;i++){
str4=str4+"0";
}
text_field[4].setText(str4+Tools.getQuanteranry(temp));
str4="";
}
else{
return;
}
//正数八进制
if(Integer.toOctalString(temp).length()<=12){
len=12-Integer.toOctalString(temp).length();
for(int i=0;i<len-1;i++){
str4=str4+"0";
}
text_field[6].setText(str4+Integer.toOctalString(temp));
str4="";
}
else{
return;
}
//相反数八进制
text_field[7].setText(Integer.toOctalString(-temp));
//正数十六进制
if(Integer.toHexString(temp).length()<=8){
len=8-Integer.toHexString(temp).length();
for(int i=0;i<len-1;i++){
str4=str4+"0";
}
text_field[8].setText(str4+Integer.toHexString(temp));
str4="";
}
else{
return;
}
//相反数十六进制
text_field[9].setText(Integer.toHexString(-temp));
}
});
} public static void main(String args[]){
new SystemSwitch().init();
}
}

java进制转换器  图形用户界面  十进制及其相反数分别转化为二,四,八,十六进制

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