String Class Examples

Author: rtomar

CCVT_Code_Distribute/src/com/rt/string/forStrings.java

@@ -0,0 +1,156 @@
+package com.rt.string;
+import java.util.StringTokenizer;
+
+import com.rt.cloning.Employee;
+
+
+public class forStrings {
+
+	/**
+	 * @param args
+	 */
+	public static void main(String[] args) {
+		char ch[]={'h','e','l','l','o'};
+		
+		System.out.println(ch);
+
+		String str=new String(ch);
+		System.out.println(str);
+
+		System.out.println(str.equals(ch));
+
+		
+		String s1="Example of being immutable";
+		String s2="Example of being immutable";//
+		System.out.println("Checking s1 & s2 "+(s1==s2));
+		
+		String s3=new String("Example of being immutable");//
+		System.out.println("checking s1 & s3 "+(s1==s3));
+		System.out.println("Checking s1 & s2"+s1.equals(s2)+"\nchecking s1 & s3"+s1.equals(s3));
+		
+		System.out.println(s1.compareTo(s2));
+		System.out.println(s1.compareTo(s3));
+		
+		
+		s3=s3.intern();
+		System.out.println("checking s1 & s3 "+(s1==s3));
+		
+		String s41="abc";
+		String s51="abc";
+		String s61="abcdef";
+		System.out.println(s41==s51);//true
+		String s71=new String("abc");
+		s71=s71+"def";
+		System.out.println(s71);//abcdef
+		System.out.println(s61);//abcdef
+//		s71=s71.intern();
+		System.out.println(s61==s71);//false
+		//s51.concat("def");System.out.println("hghgj"+s51);
+		StringBuffer tt=new StringBuffer("abc");
+		tt.append("defssss");
+		
+		System.out.println(tt);
+		
+		
+		
+		
+		
+		
+		//String s1="Example of being immutable";
+		System.out.println(s1.charAt(2));
+		System.out.println(s1.length());
+		System.out.println(s1.format("Hey there %d and %d results in %d", 2,3,5));
+		System.out.println(s1.substring(4));
+		System.out.println(s1.substring(4, 9));
+		System.out.println(s2.substring(0, 1));//start index end index
+		System.out.println(s1.contains("bein"));
+		System.out.println(s1.isEmpty());
+		
+		String s4="Hi this is";
+		String s5="CCVT at UPES";
+		String s6=s4+s5;//	String s6=(new StringBuilder()).append(s4).append(s5).toString();  
+		System.out.println(s6);
+		s4.concat(s5);//being immutable
+		System.out.println(s4);
+		s4=s4.concat(s5);
+		System.out.println(s4);
+		
+		s1.replace('o', 'q');
+		System.out.println(s1);
+		
+		s1=s1.replace("being", "not");
+		System.out.println(s1);
+		String s7="    after 5 space";
+		System.out.println(s7);
+		System.out.println(s7.trim());
+		
+		System.out.println(s1.toLowerCase());
+		System.out.println(s1.toUpperCase());
+		
+		System.out.println(s1.startsWith("Ex"));
+		System.out.println(s1.endsWith("le"));
+		
+		int a=10;
+		String s8=String.valueOf(a);
+		
+		System.out.println(s8+12);
+		
+		
+		////******************STRING BUFFER
+		/*
+		*/
+		System.out.println("****************STRING BUFFER NOW***************");
+		StringBuffer sf1=new StringBuffer();//can be passed with int or string
+//sf1.append("aaaaaaaaaaaaaaaaa");
+		System.out.println(sf1.capacity()+""+sf1);
+		sf1.append("few string to append");
+		System.out.println(sf1);
+		sf1.insert(0, "see more appended ");
+		System.out.println(sf1);
+		sf1.replace(0, 8, "deleted");
+		System.out.println(sf1);
+		sf1.delete(0, 7);
+		System.out.println(sf1);
+		sf1.reverse();
+		System.out.println(sf1);
+//		sf1.ensureCapacity(50);
+		System.out.println(sf1.capacity());
+		
+		StringBuilder sb1=new StringBuilder();//can be passed with int or string
+		
+		sb1.reverse();
+		System.out.println(sb1.capacity()+""+sb1);
+		sb1.append("few string to append");
+		System.out.println(sb1);
+		sb1.insert(0, "see more appended ");
+		System.out.println(sb1);
+		sb1.replace(0, 8, "deleted");
+		System.out.println(sb1);
+		sb1.delete(0, 7);
+		System.out.println(sb1);
+		sb1.reverse();
+		System.out.println(sb1);
+//		sb1.ensureCapacity(500);
+		System.out.println(sb1.capacity());
+		
+		
+		//	toString method tgo be explained
+		String s9="This, string, will, be, tokenized";
+		StringTokenizer stk=new StringTokenizer(s9,"s");
+		while(stk.hasMoreTokens())
+		{
+			System.out.println(stk.nextToken());
+		}
+		
+		String s10[]=s9.split(",");
+		System.out.println(s10.length);
+		System.out.println(s10[0]+" XX"+s10[1]+" XX"+s10[2]);
+		
+		
+		
+		
+		// TODO Auto-generated method stub
+
+	}
+
+}