如何从数组列表中删除某些单词-JAVA import java.util.ArrayList; 公共类U3A4_CDCollection扩展了javax.swing.JFrame{ ArrayList strArray=新的ArrayList(); /**
如何从数组列表中删除某些单词-JAVA如何从数组列表中删除某些单词-JAVA import java.util.ArrayList; 公共类U3A4_CDCollection扩展了javax.swing.JFrame{ ArrayList strArray=新的ArrayList(); /**,java,arraylist,Java,Arraylist,如何从数组列表中删除某些单词-JAVA import java.util.ArrayList; 公共类U3A4_CDCollection扩展了javax.swing.JFrame{ ArrayList strArray=新的ArrayList(); /** *创建新表单U3A4\U CDCollection */ 公共U3A4_CDCollection(){ 初始化组件(); } @抑制警告(“未选中”) // 私有组件(){ lblTitl
import java.util.ArrayList;
公共类U3A4_CDCollection扩展了javax.swing.JFrame{
ArrayList strArray=新的ArrayList();
/**
*创建新表单U3A4\U CDCollection
*/
公共U3A4_CDCollection(){
初始化组件();
}
@抑制警告(“未选中”)
//
私有组件(){
lblTitle=newjavax.swing.JLabel();
lblName=newjavax.swing.JLabel();
txtInputName=newjavax.swing.JTextField();
togbtnInitialize=newjavax.swing.JToggleButton();
togbtnRemove=newjavax.swing.JToggleButton();
togbtnAdd=newjavax.swing.JToggleButton();
togbtnDisplay=newjavax.swing.JToggleButton();
jScrollPane1=newjavax.swing.JScrollPane();
txtAreaOutput=newjavax.swing.JTextArea();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setFont(新的java.awt.Font(“Sylfaen”,1,36));//NOI18N
lblTitle.setText(“光盘收藏”);
lblName.setFont(新的java.awt.Font(“Sylfaen”,0,14));//NOI18N
lblName.setText(“标题-艺术家”);
txtInputName.setFont(新的java.awt.Font(“Sylfaen”,0,14));//NOI18N
togbtnInitialize.setFont(新的java.awt.Font(“Sylfaen”,0,14));//NOI18N
togbtnInitialize.setText(“初始化”);
togbtnInitialize.addActionListener(新java.awt.event.ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent evt){
TogbtInInitializeActionPerformed(evt);
}
});
togbtnRemove.setFont(新的java.awt.Font(“Sylfaen”,0,14));//NOI18N
togbtnRemove.setText(“删除”);
togbtnRemove.setEnabled(false);
togbtnRemove.addActionListener(新java.awt.event.ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent evt){
togbtnRemoveActionPerformed(evt);
}
});
togbtnAdd.setFont(新的java.awt.Font(“Sylfaen”,0,14));//NOI18N
togbtnAdd.setText(“添加”);
togbtnAdd.setEnabled(false);
togbtnAdd.addActionListener(新java.awt.event.ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent evt){
togbtnAddActionPerformed(evt);
}
});
togbtnDisplay.setFont(新的java.awt.Font(“Sylfaen”,0,14));//NOI18N
togbtnDisplay.setText(“显示”);
togbtnDisplay.setEnabled(false);
txtAreaOutput.setEditable(false);
txtAreaOutput.setColumns(20);
txtAreaOutput.setLineWrap(true);
txtAreaOutput.setRows(5);
txtAreaOutput.setWrapStyleWord(true);
jScrollPane1.setViewportView(txtAreaOutput);
javax.swing.GroupLayout=newjavax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(布局);
layout.setHorizontalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(34,34,34)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING,false)
.addComponent(jScrollPane1)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(lblName)
.addComponent(togbtnDisplay,javax.swing.GroupLayout.PREFERRED\u SIZE,79,javax.swing.GroupLayout.PREFERRED\u SIZE))
.addGap(24,24,24)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING,false)
.addGroup(layout.createSequentialGroup()
.addComponent(togbtnInitialize)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED,javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u值)
.addComponent(togbtnAdd,javax.swing.GroupLayout.PREFERRED\u SIZE,79,javax.swing.GroupLayout.PREFERRED\u SIZE)
.addGap(18,18,18)
.addComponent(togbtnRemove))
.addComponent(lblTitle)
.addComponent(txInputName,javax.swing.GroupLayout.PREFERRED_SIZE,350,javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(43,简称最大值))
);
layout.setVerticalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(lblTitle)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(TXInputName、javax.swing.GroupLayout.PREFERRED\u大小、javax.swing.GroupLayout.DEFAULT\u大小、javax.swing.GroupLayout.PREFERRED\u大小)
.addComponent(lblName))
.addGap(18,18,18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(togbtnDisplay)
.addComponent(togbtnInitialize)
.addComponent(togbtnRemove)
.addComponent(togbtnAdd))
.addGap(29,29,29)
.addComponent(jScrollPane1,javax.swing.GroupLayout.PREFERRED_SIZE,267,javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(34,简称最大值))
);
包装();
}//
私有void togbtnadactionperformed(java.awt.event.ActionEvent evt){
add(this.txtInputName.getText());
系统输出打印LN(strArray);
this.txtAreaOutput.setText(txtAreaOutput.getText()+“\n”+strArray.get(strArray.size());
}
private void togbtnInitializeActionPerformed(java.awt.event.ActionEvent evt){
togbtnAdd.setEnabled(真);
togbtnRemove.setEnabled(true);
togbtnDisplay。
import java.util.ArrayList;
public class U3A4_CDCollection extends javax.swing.JFrame {
ArrayList <String> strArray = new ArrayList();
/**
* Creates new form U3A4_CDCollection
*/
public U3A4_CDCollection() {
initComponents();
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
lblTitle = new javax.swing.JLabel();
lblName = new javax.swing.JLabel();
txtInputName = new javax.swing.JTextField();
togbtnInitialize = new javax.swing.JToggleButton();
togbtnRemove = new javax.swing.JToggleButton();
togbtnAdd = new javax.swing.JToggleButton();
togbtnDisplay = new javax.swing.JToggleButton();
jScrollPane1 = new javax.swing.JScrollPane();
txtAreaOutput = new javax.swing.JTextArea();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
lblTitle.setFont(new java.awt.Font("Sylfaen", 1, 36)); // NOI18N
lblTitle.setText("CD Collection");
lblName.setFont(new java.awt.Font("Sylfaen", 0, 14)); // NOI18N
lblName.setText("Title - Artist");
txtInputName.setFont(new java.awt.Font("Sylfaen", 0, 14)); // NOI18N
togbtnInitialize.setFont(new java.awt.Font("Sylfaen", 0, 14)); // NOI18N
togbtnInitialize.setText("Initialize");
togbtnInitialize.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
togbtnInitializeActionPerformed(evt);
}
});
togbtnRemove.setFont(new java.awt.Font("Sylfaen", 0, 14)); // NOI18N
togbtnRemove.setText("Remove");
togbtnRemove.setEnabled(false);
togbtnRemove.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
togbtnRemoveActionPerformed(evt);
}
});
togbtnAdd.setFont(new java.awt.Font("Sylfaen", 0, 14)); // NOI18N
togbtnAdd.setText("Add");
togbtnAdd.setEnabled(false);
togbtnAdd.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
togbtnAddActionPerformed(evt);
}
});
togbtnDisplay.setFont(new java.awt.Font("Sylfaen", 0, 14)); // NOI18N
togbtnDisplay.setText("Display");
togbtnDisplay.setEnabled(false);
txtAreaOutput.setEditable(false);
txtAreaOutput.setColumns(20);
txtAreaOutput.setLineWrap(true);
txtAreaOutput.setRows(5);
txtAreaOutput.setWrapStyleWord(true);
jScrollPane1.setViewportView(txtAreaOutput);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(34, 34, 34)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jScrollPane1)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(lblName)
.addComponent(togbtnDisplay, javax.swing.GroupLayout.PREFERRED_SIZE, 79, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(24, 24, 24)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(layout.createSequentialGroup()
.addComponent(togbtnInitialize)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(togbtnAdd, javax.swing.GroupLayout.PREFERRED_SIZE, 79, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(togbtnRemove))
.addComponent(lblTitle)
.addComponent(txtInputName, javax.swing.GroupLayout.PREFERRED_SIZE, 350, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addContainerGap(43, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(lblTitle)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(txtInputName, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lblName))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(togbtnDisplay)
.addComponent(togbtnInitialize)
.addComponent(togbtnRemove)
.addComponent(togbtnAdd))
.addGap(29, 29, 29)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 267, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(34, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void togbtnAddActionPerformed(java.awt.event.ActionEvent evt) {
strArray.add(this.txtInputName.getText());
System.out.println(strArray);
this.txtAreaOutput.setText(txtAreaOutput.getText() + "\n" + strArray.get(strArray.size()));
}
private void togbtnInitializeActionPerformed(java.awt.event.ActionEvent evt) {
togbtnAdd.setEnabled(true);
togbtnRemove.setEnabled(true);
togbtnDisplay.setEnabled(true);
String[] strArray = {"Calvin Harris - Overdrive(Part 2)", "DVBBS & Borgeous - TSUNAMI", "Martin Garrix - Tremor", "Martin Garrix - Animals", "Firebeatz - Max Ammo"};
int intArrayLength = strArray.length;
for (int i = 0; i < intArrayLength; i++){
this.txtAreaOutput.setText(txtAreaOutput.getText() + "\n" + strArray[i]);
}
togbtnInitialize.setEnabled(false);
}
private void togbtnRemoveActionPerformed(java.awt.event.ActionEvent evt) {
String strRemove = this.txtInputName.getText();
System.out.print(strArray);
for (int i = 0; i < strArray.size(); i++){
if (strArray.get(i).equals(strRemove)){
strArray.remove(strRemove);
}
}
System.out.print(strArray);
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(U3A4_CDCollection.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(U3A4_CDCollection.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(U3A4_CDCollection.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(U3A4_CDCollection.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new U3A4_CDCollection().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JLabel lblName;
private javax.swing.JLabel lblTitle;
private javax.swing.JToggleButton togbtnAdd;
private javax.swing.JToggleButton togbtnDisplay;
private javax.swing.JToggleButton togbtnInitialize;
private javax.swing.JToggleButton togbtnRemove;
private javax.swing.JTextArea txtAreaOutput;
private javax.swing.JTextField txtInputName;
// End of variables declaration
strArray.remove(strRemove);
while(strArray.remove(strRemove)){}
area.setText(area.getText()+newText);
area.append(newText);
String[] strArray = {"Calvin Harris..."};
ArrayList<String> strArray = new ArrayList();
strArray = new ArrayList<>(Arrays.asList(
"Calvin Harris - Overdrive(Part 2)",
"DVBBS & Borgeous - TSUNAMI",
"Martin Garrix - Tremor",
"Martin Garrix - Animals",
"Firebeatz - Max Ammo"));
for (String value : strArray) {
this.txtAreaOutput.append(value + "\n");
}
strArray.get(strArray.size())
{0, 1, 2, ..., n-2, n-1} => n-elements
strArray.get(strArray.size()-1)
strArray.remove(strRemove);
txtAreaOutput.setText("");
for (String value : strArray) {
this.txtAreaOutput.append(value + "\n");
}