37 lines
988 B
Java
37 lines
988 B
Java
public class Lab3 {
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public static void main(String[] args) {
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String s = "ASD";
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StringBuilder stringBuilder = new StringBuilder("ASD");
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stringBuilder.append("A");
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String s2 = s;
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System.out.println("s2 = " + s2);
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System.out.println(s == s2); // true?
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System.out.println(s.equals(s2)); // true?
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s += "B";
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System.out.println(s);
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System.out.println("s2 = " + s2);
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System.out.println(s == s2); // false?
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System.out.println(s.equals(s2)); // false?
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String s3 = new String("ASD");
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System.out.println(s3 == s2); // true? (false)
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System.out.println(s3.equals(s2)); // false? (true)
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// String Pool
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String s4 = "ASD";
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// String s5 = new String("ASD");
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String s5 = "AS";
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s5 += "D";
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System.out.println(s4 == s5); // true? (SP)
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System.out.println(s4.equals(s5)); // (true)
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System.out.println("Done!");
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}
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}
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