publicclassStringInsertExample{publicstaticStringinsertStringAt(Stringoriginal,StringtoInsert,intposition){// 检查位置是否有效if(position<0||position>original.length()){thrownewIllegalArgumentException("Invalid position");}// 使用 StringBuilder 进行拼接StringBuildersb=newStringBuilder(original);sb.insert(positi...
return insert(offset, String.valueOf(obj)); //调用insert(int offset, String str) } /** * Inserts the string into this character sequence. * * The characters of the {@code String} argument are inserted, in * order, into this sequence at the indicated offset, moving up any * characte...
public void insertText (String string, int position) The insert() method inserts string at position into the TextArea. If position is beyond the end of the TextArea, string is appended to the end of the TextArea. insertText() is the Java 1.0 name for this method. public void append ...
• static TitledBorder createTitledBorder(Border border, String title) • static TitledBorder createTitledBorder(Border border, String title, int justification, int position) • static TitledBorder createTitledBorder(Border border, String title, int justification, int position, Font font) • stat...
//设置窗口是否可以关闭setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//创建一个标签JLabel lable=newJLabel("lable就是一个文本");//获取本窗口的内容窗格Container c=getContentPane();//将lable标签组件添加到内容窗格上c.add(lable);//设置本窗口是否可见setVisible(true);}publicstaticvoidmain(String[]...
insert(JMenuItem mi,int pos) 在给定位置插入指定的 JMenuitem insert(String s,pos) 在给定位置插入具有指定文本的新菜单项 insertSeparator(int index) 在指定的位置插入分隔符 isMenuComponent(Component c) 如果在子菜单层次结构中存在指定的组件,则返回 true isPopupMenuVisible() 如果菜单的弹出窗口可见,则...
StringBuffer delete(int start, int end) Removes the characters in a substring of this sequence. StringBuffer deleteCharAt(int index) Removes the char at the specified position in this sequence. void ensureCapacity(int minimumCapacity) Ensures that the capacity is at least equal to the specifie...
### Cause: java.sql.SQLException: Incorrect string value: '\xF0\x9F\x88\x9A' for column 'personal_history' at row 1 ; uncategorized SQLException for SQL []; SQL state [HY000]; error code [1366]; Incorrect string value: '\xF0\x9F\x88\x9A' for column 'personal_history' at row 1...
Returns the index within this string of the first occurrence of the specified substring, starting at the specified index. StringBuilder insert(int offset, boolean b) Inserts the string representation of the boolean argument into this sequence. StringBuilder insert(int offset, char c) Inserts the...
StringBuffer StringBufferInputStream StringBuilder StringCharacterIterator StringContent StringHolder StringIndexOutOfBoundsException StringMonitor StringMonitorMBean StringNameHelper StringReader StringRefAddr StringSelection StringSeqHelper StringSeqHolder StringTokenizer StringValueExp StringValue...