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public class StringDemo6{ public static void main(String s[]) { String str="320122198501103616"; str = str.substring(6, 14); System.out.println(str); 阅读全文
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public class StringDemo5{ public static void main(String s[]){ String str="java技 术学习 班2007 03 26"; str = str.replace(" ", ""); System.out.println(str) 阅读全文
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public class StringDemo04 { public static void main(String s[]){ String str="java技术学习班20070326"; String s1=str.replace("0",""); System.out.println(s1) 阅读全文
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class StringDemo3{ public static void main(String[] args) { String str="java技术学习班20070326"; System.out.println(str.charAt(8)); } } 阅读全文
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class StringDemo02{ public static void main(String[] args) { String str="MLDN JAVA"; String str1=str.replace("JAVA","J2EE"); System.out.println("替换后的结 阅读全文
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public class HomeWork01{ public static void main(String s[]){ String str="java技术学习班20070326"; str = str.substring(9, 17); System.out.println(str); } } 阅读全文