谢谢
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数组转字符串?
具体点
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char[] c={ 'a ', 'b ', 'c '};
String s=new String(c);
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char[] ch = { 'a ', 'b ', 'c '};
System.out.println(new String(ch));
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JPasswordField jpf = new JPasswordField();
String s=new String(jpf.getPassword());
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String.ValuOf()
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ch.toString();
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String a=new String(new JPasswordField().getPassword());